/*
 *  Catch v2.2.3
 *  Generated: 2018-06-06 23:11:57.601416
 *  ----------------------------------------------------------
 *  This file has been merged from multiple headers. Please don't edit it directly
 *  Copyright (c) 2018 Two Blue Cubes Ltd. All rights reserved.
 *
 *  Distributed under the Boost Software License, Version 1.0. (See accompanying
 *  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 */
#ifndef TWOBLUECUBES_SINGLE_INCLUDE_CATCH_HPP_INCLUDED
#define TWOBLUECUBES_SINGLE_INCLUDE_CATCH_HPP_INCLUDED
// start catch.hpp

#define CATCH_VERSION_MAJOR 2
#define CATCH_VERSION_MINOR 2
#define CATCH_VERSION_PATCH 3

#ifdef __clang__
#pragma clang system_header
#elif defined __GNUC__
#pragma GCC system_header
#endif

// start catch_suppress_warnings.h

#ifdef __clang__
#ifdef __ICC // icpc defines the __clang__ macro
#pragma warning(push)
#pragma warning(disable : 161 1682)
#else // __ICC
#pragma clang diagnostic ignored "-Wunused-variable"
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wpadded"
#pragma clang diagnostic ignored "-Wswitch-enum"
#pragma clang diagnostic ignored "-Wcovered-switch-default"
#endif
#elif defined __GNUC__
#pragma GCC diagnostic ignored "-Wparentheses"
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-variable"
#pragma GCC diagnostic ignored "-Wpadded"
#endif
// end catch_suppress_warnings.h
#if defined(CATCH_CONFIG_MAIN) || defined(CATCH_CONFIG_RUNNER)
#define CATCH_IMPL
#define CATCH_CONFIG_ALL_PARTS
#endif

// In the impl file, we want to have access to all parts of the headers
// Can also be used to sanely support PCHs
#if defined(CATCH_CONFIG_ALL_PARTS)
#define CATCH_CONFIG_EXTERNAL_INTERFACES
#if defined(CATCH_CONFIG_DISABLE_MATCHERS)
#undef CATCH_CONFIG_DISABLE_MATCHERS
#endif
#define CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER
#endif

#if !defined(CATCH_CONFIG_IMPL_ONLY)
// start catch_platform.h

#ifdef __APPLE__
#include <TargetConditionals.h>
#if TARGET_OS_OSX == 1
#define CATCH_PLATFORM_MAC
#elif TARGET_OS_IPHONE == 1
#define CATCH_PLATFORM_IPHONE
#endif

#elif defined(linux) || defined(__linux) || defined(__linux__)
#define CATCH_PLATFORM_LINUX

#elif defined(WIN32) || defined(__WIN32__) || defined(_WIN32) || defined(_MSC_VER) || defined(__MINGW32__)
#define CATCH_PLATFORM_WINDOWS
#endif

// end catch_platform.h

#ifdef CATCH_IMPL
#ifndef CLARA_CONFIG_MAIN
#define CLARA_CONFIG_MAIN_NOT_DEFINED
#define CLARA_CONFIG_MAIN
#endif
#endif

// start catch_user_interfaces.h

namespace Catch
{
unsigned int rngSeed();
}

// end catch_user_interfaces.h
// start catch_tag_alias_autoregistrar.h

// start catch_common.h

// start catch_compiler_capabilities.h

// Detect a number of compiler features - by compiler
// The following features are defined:
//
// CATCH_CONFIG_COUNTER : is the __COUNTER__ macro supported?
// CATCH_CONFIG_WINDOWS_SEH : is Windows SEH supported?
// CATCH_CONFIG_POSIX_SIGNALS : are POSIX signals supported?
// ****************
// Note to maintainers: if new toggles are added please document them
// in configuration.md, too
// ****************

// In general each macro has a _NO_<feature name> form
// (e.g. CATCH_CONFIG_NO_POSIX_SIGNALS) which disables the feature.
// Many features, at point of detection, define an _INTERNAL_ macro, so they
// can be combined, en-mass, with the _NO_ forms later.

#ifdef __cplusplus

#if __cplusplus >= 201402L
#define CATCH_CPP14_OR_GREATER
#endif

#if __cplusplus >= 201703L
#define CATCH_CPP17_OR_GREATER
#endif

#endif

#if defined(CATCH_CPP17_OR_GREATER)
#define CATCH_INTERNAL_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS
#endif

#ifdef __clang__

#define CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                        \
    _Pragma("clang diagnostic push")                                    \
        _Pragma("clang diagnostic ignored \"-Wexit-time-destructors\"") \
            _Pragma("clang diagnostic ignored \"-Wglobal-constructors\"")
#define CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS \
    _Pragma("clang diagnostic pop")

#define CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS \
    _Pragma("clang diagnostic push")                 \
        _Pragma("clang diagnostic ignored \"-Wparentheses\"")
#define CATCH_INTERNAL_UNSUPPRESS_PARENTHESES_WARNINGS \
    _Pragma("clang diagnostic pop")

#endif // __clang__

////////////////////////////////////////////////////////////////////////////////
// Assume that non-Windows platforms support posix signals by default
#if !defined(CATCH_PLATFORM_WINDOWS)
#define CATCH_INTERNAL_CONFIG_POSIX_SIGNALS
#endif

////////////////////////////////////////////////////////////////////////////////
// We know some environments not to support full POSIX signals
#if defined(__CYGWIN__) || defined(__QNX__) || defined(__EMSCRIPTEN__) || defined(__DJGPP__)
#define CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS
#endif

#ifdef __OS400__
#define CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS
#define CATCH_CONFIG_COLOUR_NONE
#endif

////////////////////////////////////////////////////////////////////////////////
// Android somehow still does not support std::to_string
#if defined(__ANDROID__)
#define CATCH_INTERNAL_CONFIG_NO_CPP11_TO_STRING
#endif

////////////////////////////////////////////////////////////////////////////////
// Not all Windows environments support SEH properly
#if defined(__MINGW32__)
#define CATCH_INTERNAL_CONFIG_NO_WINDOWS_SEH
#endif

////////////////////////////////////////////////////////////////////////////////
// Cygwin
#ifdef __CYGWIN__

// Required for some versions of Cygwin to declare gettimeofday
// see: http://stackoverflow.com/questions/36901803/gettimeofday-not-declared-in-this-scope-cygwin
#define _BSD_SOURCE

#endif // __CYGWIN__

////////////////////////////////////////////////////////////////////////////////
// Visual C++
#ifdef _MSC_VER

#if _MSC_VER >= 1900 // Visual Studio 2015 or newer
#define CATCH_INTERNAL_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS
#endif

// Universal Windows platform does not support SEH
// Or console colours (or console at all...)
#if defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_APP)
#define CATCH_CONFIG_COLOUR_NONE
#else
#define CATCH_INTERNAL_CONFIG_WINDOWS_SEH
#endif

#endif // _MSC_VER

////////////////////////////////////////////////////////////////////////////////

// DJGPP
#ifdef __DJGPP__
#define CATCH_INTERNAL_CONFIG_NO_WCHAR
#endif // __DJGPP__

////////////////////////////////////////////////////////////////////////////////

// Use of __COUNTER__ is suppressed during code analysis in
// CLion/AppCode 2017.2.x and former, because __COUNTER__ is not properly
// handled by it.
// Otherwise all supported compilers support COUNTER macro,
// but user still might want to turn it off
#if (!defined(__JETBRAINS_IDE__) || __JETBRAINS_IDE__ >= 20170300L)
#define CATCH_INTERNAL_CONFIG_COUNTER
#endif

#if defined(CATCH_INTERNAL_CONFIG_COUNTER) && !defined(CATCH_CONFIG_NO_COUNTER) && !defined(CATCH_CONFIG_COUNTER)
#define CATCH_CONFIG_COUNTER
#endif
#if defined(CATCH_INTERNAL_CONFIG_WINDOWS_SEH) && !defined(CATCH_CONFIG_NO_WINDOWS_SEH) && !defined(CATCH_CONFIG_WINDOWS_SEH) && !defined(CATCH_INTERNAL_CONFIG_NO_WINDOWS_SEH)
#define CATCH_CONFIG_WINDOWS_SEH
#endif
// This is set by default, because we assume that unix compilers are posix-signal-compatible by default.
#if defined(CATCH_INTERNAL_CONFIG_POSIX_SIGNALS) && !defined(CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS) && !defined(CATCH_CONFIG_NO_POSIX_SIGNALS) && !defined(CATCH_CONFIG_POSIX_SIGNALS)
#define CATCH_CONFIG_POSIX_SIGNALS
#endif
// This is set by default, because we assume that compilers with no wchar_t support are just rare exceptions.
#if !defined(CATCH_INTERNAL_CONFIG_NO_WCHAR) && !defined(CATCH_CONFIG_NO_WCHAR) && !defined(CATCH_CONFIG_WCHAR)
#define CATCH_CONFIG_WCHAR
#endif

#if !defined(CATCH_INTERNAL_CONFIG_NO_CPP11_TO_STRING) && !defined(CATCH_CONFIG_NO_CPP11_TO_STRING) && !defined(CATCH_CONFIG_CPP11_TO_STRING)
#define CATCH_CONFIG_CPP11_TO_STRING
#endif

#if defined(CATCH_INTERNAL_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS) && !defined(CATCH_CONFIG_NO_CPP17_UNCAUGHT_EXCEPTIONS) && !defined(CATCH_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS)
#define CATCH_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS
#endif

#if !defined(CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS)
#define CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS
#define CATCH_INTERNAL_UNSUPPRESS_PARENTHESES_WARNINGS
#endif
#if !defined(CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS)
#define CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS
#define CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS
#endif

// end catch_compiler_capabilities.h
#define INTERNAL_CATCH_UNIQUE_NAME_LINE2(name, line) name##line
#define INTERNAL_CATCH_UNIQUE_NAME_LINE(name, line) INTERNAL_CATCH_UNIQUE_NAME_LINE2(name, line)
#ifdef CATCH_CONFIG_COUNTER
#define INTERNAL_CATCH_UNIQUE_NAME(name) INTERNAL_CATCH_UNIQUE_NAME_LINE(name, __COUNTER__)
#else
#define INTERNAL_CATCH_UNIQUE_NAME(name) INTERNAL_CATCH_UNIQUE_NAME_LINE(name, __LINE__)
#endif

#include <cstdint>
#include <iosfwd>
#include <string>

namespace Catch
{

struct CaseSensitive
{
    enum Choice
    {
        Yes,
        No
    };
};

class NonCopyable
{
    NonCopyable(NonCopyable const &) = delete;
    NonCopyable(NonCopyable &&) = delete;
    NonCopyable &operator=(NonCopyable const &) = delete;
    NonCopyable &operator=(NonCopyable &&) = delete;

  protected:
    NonCopyable();
    virtual ~NonCopyable();
};

struct SourceLineInfo
{

    SourceLineInfo() = delete;
    SourceLineInfo(char const *_file, std::size_t _line) noexcept
        : file(_file), line(_line)
    {
    }

    SourceLineInfo(SourceLineInfo const &other) = default;
    SourceLineInfo(SourceLineInfo &&) = default;
    SourceLineInfo &operator=(SourceLineInfo const &) = default;
    SourceLineInfo &operator=(SourceLineInfo &&) = default;

    bool empty() const noexcept;
    bool operator==(SourceLineInfo const &other) const noexcept;
    bool operator<(SourceLineInfo const &other) const noexcept;

    char const *file;
    std::size_t line;
};

std::ostream &operator<<(std::ostream &os, SourceLineInfo const &info);

// Use this in variadic streaming macros to allow
//    >> +StreamEndStop
// as well as
//    >> stuff +StreamEndStop
struct StreamEndStop
{
    std::string operator+() const;
};
template <typename T>
T const &operator+(T const &value, StreamEndStop)
{
    return value;
}
} // namespace Catch

#define CATCH_INTERNAL_LINEINFO \
    ::Catch::SourceLineInfo(__FILE__, static_cast<std::size_t>(__LINE__))

// end catch_common.h
namespace Catch
{

struct RegistrarForTagAliases
{
    RegistrarForTagAliases(char const *alias, char const *tag, SourceLineInfo const &lineInfo);
};

} // end namespace Catch

#define CATCH_REGISTER_TAG_ALIAS(alias, spec)                                                                             \
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                                                                              \
    namespace                                                                                                             \
    {                                                                                                                     \
    Catch::RegistrarForTagAliases INTERNAL_CATCH_UNIQUE_NAME(AutoRegisterTagAlias)(alias, spec, CATCH_INTERNAL_LINEINFO); \
    }                                                                                                                     \
    CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS

// end catch_tag_alias_autoregistrar.h
// start catch_test_registry.h

// start catch_interfaces_testcase.h

#include <memory>
#include <vector>

namespace Catch
{

class TestSpec;

struct ITestInvoker
{
    virtual void invoke() const = 0;
    virtual ~ITestInvoker();
};

using ITestCasePtr = std::shared_ptr<ITestInvoker>;

class TestCase;
struct IConfig;

struct ITestCaseRegistry
{
    virtual ~ITestCaseRegistry();
    virtual std::vector<TestCase> const &getAllTests() const = 0;
    virtual std::vector<TestCase> const &getAllTestsSorted(IConfig const &config) const = 0;
};

bool matchTest(TestCase const &testCase, TestSpec const &testSpec, IConfig const &config);
std::vector<TestCase> filterTests(std::vector<TestCase> const &testCases, TestSpec const &testSpec, IConfig const &config);
std::vector<TestCase> const &getAllTestCasesSorted(IConfig const &config);

} // namespace Catch

// end catch_interfaces_testcase.h
// start catch_stringref.h

#include <cstddef>
#include <iosfwd>
#include <string>

namespace Catch
{

class StringData;

/// A non-owning string class (similar to the forthcoming std::string_view)
/// Note that, because a StringRef may be a substring of another string,
/// it may not be null terminated. c_str() must return a null terminated
/// string, however, and so the StringRef will internally take ownership
/// (taking a copy), if necessary. In theory this ownership is not externally
/// visible - but it does mean (substring) StringRefs should not be shared between
/// threads.
class StringRef
{
  public:
    using size_type = std::size_t;

  private:
    friend struct StringRefTestAccess;

    char const *m_start;
    size_type m_size;

    char *m_data = nullptr;

    void takeOwnership();

    static constexpr char const *const s_empty = "";

  public: // construction/ assignment
    StringRef() noexcept
        : StringRef(s_empty, 0)
    {
    }

    StringRef(StringRef const &other) noexcept
        : m_start(other.m_start), m_size(other.m_size)
    {
    }

    StringRef(StringRef &&other) noexcept
        : m_start(other.m_start), m_size(other.m_size), m_data(other.m_data)
    {
        other.m_data = nullptr;
    }

    StringRef(char const *rawChars) noexcept;

    StringRef(char const *rawChars, size_type size) noexcept
        : m_start(rawChars), m_size(size)
    {
    }

    StringRef(std::string const &stdString) noexcept
        : m_start(stdString.c_str()), m_size(stdString.size())
    {
    }

    ~StringRef() noexcept
    {
        delete[] m_data;
    }

    auto operator=(StringRef const &other) noexcept -> StringRef &
    {
        delete[] m_data;
        m_data = nullptr;
        m_start = other.m_start;
        m_size = other.m_size;
        return *this;
    }

    operator std::string() const;

    void swap(StringRef &other) noexcept;

  public: // operators
    auto operator==(StringRef const &other) const noexcept -> bool;
    auto operator!=(StringRef const &other) const noexcept -> bool;

    auto operator[](size_type index) const noexcept -> char;

  public: // named queries
    auto empty() const noexcept -> bool
    {
        return m_size == 0;
    }
    auto size() const noexcept -> size_type
    {
        return m_size;
    }

    auto numberOfCharacters() const noexcept -> size_type;
    auto c_str() const -> char const *;

  public: // substrings and searches
    auto substr(size_type start, size_type size) const noexcept -> StringRef;

    // Returns the current start pointer.
    // Note that the pointer can change when if the StringRef is a substring
    auto currentData() const noexcept -> char const *;

  private: // ownership queries - may not be consistent between calls
    auto isOwned() const noexcept -> bool;
    auto isSubstring() const noexcept -> bool;
};

auto operator+(StringRef const &lhs, StringRef const &rhs) -> std::string;
auto operator+(StringRef const &lhs, char const *rhs) -> std::string;
auto operator+(char const *lhs, StringRef const &rhs) -> std::string;

auto operator+=(std::string &lhs, StringRef const &sr) -> std::string &;
auto operator<<(std::ostream &os, StringRef const &sr) -> std::ostream &;

inline auto operator"" _sr(char const *rawChars, std::size_t size) noexcept -> StringRef
{
    return StringRef(rawChars, size);
}

} // namespace Catch

// end catch_stringref.h
namespace Catch
{

template <typename C>
class TestInvokerAsMethod : public ITestInvoker
{
    void (C::*m_testAsMethod)();

  public:
    TestInvokerAsMethod(void (C::*testAsMethod)()) noexcept
        : m_testAsMethod(testAsMethod) {}

    void invoke() const override
    {
        C obj;
        (obj.*m_testAsMethod)();
    }
};

auto makeTestInvoker(void (*testAsFunction)()) noexcept -> ITestInvoker *;

template <typename C>
auto makeTestInvoker(void (C::*testAsMethod)()) noexcept -> ITestInvoker *
{
    return new (std::nothrow) TestInvokerAsMethod<C>(testAsMethod);
}

struct NameAndTags
{
    NameAndTags(StringRef const &name_ = StringRef(), StringRef const &tags_ = StringRef()) noexcept;
    StringRef name;
    StringRef tags;
};

struct AutoReg : NonCopyable
{
    AutoReg(ITestInvoker *invoker, SourceLineInfo const &lineInfo, StringRef const &classOrMethod, NameAndTags const &nameAndTags) noexcept;
    ~AutoReg();
};

} // end namespace Catch

#define INTERNAL_CATCH_EXPAND1(param) INTERNAL_CATCH_EXPAND2(param)
#define INTERNAL_CATCH_EXPAND2(...) INTERNAL_CATCH_NO##__VA_ARGS__
#define INTERNAL_CATCH_DEF(...) INTERNAL_CATCH_DEF __VA_ARGS__
#define INTERNAL_CATCH_NOINTERNAL_CATCH_DEF

#if defined(CATCH_CONFIG_DISABLE)
#define INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(TestName, ...) \
    static void TestName()
#define INTERNAL_CATCH_TESTCASE_METHOD_NO_REGISTRATION(TestName, ClassName, ...) \
    namespace                                                                    \
    {                                                                            \
    struct TestName : INTERNAL_CATCH_EXPAND1(INTERNAL_CATCH_DEF ClassName)       \
    {                                                                            \
        void test();                                                             \
    };                                                                           \
    }                                                                            \
    void TestName::test()

#endif

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_TESTCASE2(TestName, ...)                                                                                                                \
    static void TestName();                                                                                                                                    \
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                                                                                                                   \
    namespace                                                                                                                                                  \
    {                                                                                                                                                          \
    Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME(autoRegistrar)(Catch::makeTestInvoker(&TestName), CATCH_INTERNAL_LINEINFO, "", Catch::NameAndTags{__VA_ARGS__}); \
    } /* NOLINT */                                                                                                                                             \
    CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS                                                                                                                 \
    static void TestName()
#define INTERNAL_CATCH_TESTCASE(...) \
    INTERNAL_CATCH_TESTCASE2(INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____), __VA_ARGS__)

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_METHOD_AS_TEST_CASE(QualifiedMethod, ...)                                                                                                                        \
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                                                                                                                                            \
    namespace                                                                                                                                                                           \
    {                                                                                                                                                                                   \
    Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME(autoRegistrar)(Catch::makeTestInvoker(&QualifiedMethod), CATCH_INTERNAL_LINEINFO, "&" #QualifiedMethod, Catch::NameAndTags{__VA_ARGS__}); \
    } /* NOLINT */                                                                                                                                                                      \
    CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_TEST_CASE_METHOD2(TestName, ClassName, ...)                                                                                                                        \
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                                                                                                                                              \
    namespace                                                                                                                                                                             \
    {                                                                                                                                                                                     \
    struct TestName : INTERNAL_CATCH_EXPAND1(INTERNAL_CATCH_DEF ClassName)                                                                                                                \
    {                                                                                                                                                                                     \
        void test();                                                                                                                                                                      \
    };                                                                                                                                                                                    \
    Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME(autoRegistrar)(Catch::makeTestInvoker(&TestName::test), CATCH_INTERNAL_LINEINFO, #ClassName, Catch::NameAndTags{__VA_ARGS__}); /* NOLINT */ \
    }                                                                                                                                                                                     \
    CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS                                                                                                                                            \
    void TestName::test()
#define INTERNAL_CATCH_TEST_CASE_METHOD(ClassName, ...) \
    INTERNAL_CATCH_TEST_CASE_METHOD2(INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____), ClassName, __VA_ARGS__)

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_REGISTER_TESTCASE(Function, ...)                                                                                                                    \
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                                                                                                                               \
    Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME(autoRegistrar)(Catch::makeTestInvoker(Function), CATCH_INTERNAL_LINEINFO, "", Catch::NameAndTags{__VA_ARGS__}); /* NOLINT */ \
    CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS

// end catch_test_registry.h
// start catch_capture.hpp

// start catch_assertionhandler.h

// start catch_assertioninfo.h

// start catch_result_type.h

namespace Catch
{

// ResultWas::OfType enum
struct ResultWas
{
    enum OfType
    {
        Unknown = -1,
        Ok = 0,
        Info = 1,
        Warning = 2,

        FailureBit = 0x10,

        ExpressionFailed = FailureBit | 1,
        ExplicitFailure = FailureBit | 2,

        Exception = 0x100 | FailureBit,

        ThrewException = Exception | 1,
        DidntThrowException = Exception | 2,

        FatalErrorCondition = 0x200 | FailureBit

    };
};

bool isOk(ResultWas::OfType resultType);
bool isJustInfo(int flags);

// ResultDisposition::Flags enum
struct ResultDisposition
{
    enum Flags
    {
        Normal = 0x01,

        ContinueOnFailure = 0x02, // Failures fail test, but execution continues
        FalseTest = 0x04, // Prefix expression with !
        SuppressFail = 0x08 // Failures are reported but do not fail the test
    };
};

ResultDisposition::Flags operator|(ResultDisposition::Flags lhs, ResultDisposition::Flags rhs);

bool shouldContinueOnFailure(int flags);
inline bool isFalseTest(int flags) { return (flags & ResultDisposition::FalseTest) != 0; }
bool shouldSuppressFailure(int flags);

} // end namespace Catch

// end catch_result_type.h
namespace Catch
{

struct AssertionInfo
{
    StringRef macroName;
    SourceLineInfo lineInfo;
    StringRef capturedExpression;
    ResultDisposition::Flags resultDisposition;

    // We want to delete this constructor but a compiler bug in 4.8 means
    // the struct is then treated as non-aggregate
    //AssertionInfo() = delete;
};

} // end namespace Catch

// end catch_assertioninfo.h
// start catch_decomposer.h

// start catch_tostring.h

#include <cstddef>
#include <string>
#include <type_traits>
#include <vector>
// start catch_stream.h

#include <cstddef>
#include <iosfwd>
#include <ostream>

namespace Catch
{

std::ostream &cout();
std::ostream &cerr();
std::ostream &clog();

class StringRef;

struct IStream
{
    virtual ~IStream();
    virtual std::ostream &stream() const = 0;
};

auto makeStream(StringRef const &filename) -> IStream const *;

class ReusableStringStream
{
    std::size_t m_index;
    std::ostream *m_oss;

  public:
    ReusableStringStream();
    ~ReusableStringStream();

    auto str() const -> std::string;

    template <typename T>
    auto operator<<(T const &value) -> ReusableStringStream &
    {
        *m_oss << value;
        return *this;
    }
    auto get() -> std::ostream & { return *m_oss; }

    static void cleanup();
};
} // namespace Catch

// end catch_stream.h

#ifdef __OBJC__
// start catch_objc_arc.hpp

#import <Foundation/Foundation.h>

#ifdef __has_feature
#define CATCH_ARC_ENABLED __has_feature(objc_arc)
#else
#define CATCH_ARC_ENABLED 0
#endif

void arcSafeRelease(NSObject *obj);
id performOptionalSelector(id obj, SEL sel);

#if !CATCH_ARC_ENABLED
inline void arcSafeRelease(NSObject *obj)
{
    [obj release];
}
inline id performOptionalSelector(id obj, SEL sel)
{
    if ([obj respondsToSelector:sel])
        return [obj performSelector:sel];
    return nil;
}
#define CATCH_UNSAFE_UNRETAINED
#define CATCH_ARC_STRONG
#else
inline void arcSafeRelease(NSObject *)
{
}
inline id performOptionalSelector(id obj, SEL sel)
{
#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
#endif
    if ([obj respondsToSelector:sel])
        return [obj performSelector:sel];
#ifdef __clang__
#pragma clang diagnostic pop
#endif
    return nil;
}
#define CATCH_UNSAFE_UNRETAINED __unsafe_unretained
#define CATCH_ARC_STRONG __strong
#endif

// end catch_objc_arc.hpp
#endif

#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable : 4180) // We attempt to stream a function (address) by const&, which MSVC complains about but is harmless
#endif

// We need a dummy global operator<< so we can bring it into Catch namespace later
struct Catch_global_namespace_dummy
{
};
std::ostream &operator<<(std::ostream &, Catch_global_namespace_dummy);

namespace Catch
{
// Bring in operator<< from global namespace into Catch namespace
using ::operator<<;

namespace Detail
{

extern const std::string unprintableString;

std::string rawMemoryToString(const void *object, std::size_t size);

template <typename T>
std::string rawMemoryToString(const T &object)
{
    return rawMemoryToString(&object, sizeof(object));
}

template <typename T>
class IsStreamInsertable
{
    template <typename SS, typename TT>
    static auto test(int)
        -> decltype(std::declval<SS &>() << std::declval<TT>(), std::true_type());

    template <typename, typename>
    static auto test(...) -> std::false_type;

  public:
    static const bool value = decltype(test<std::ostream, const T &>(0))::value;
};

template <typename E>
std::string convertUnknownEnumToString(E e);

template <typename T>
typename std::enable_if<
    !std::is_enum<T>::value && !std::is_base_of<std::exception, T>::value,
    std::string>::type
    convertUnstreamable(T const &)
{
    return Detail::unprintableString;
}
template <typename T>
typename std::enable_if<
    !std::is_enum<T>::value && std::is_base_of<std::exception, T>::value,
    std::string>::type
    convertUnstreamable(T const &ex)
{
    return ex.what();
}

template <typename T>
typename std::enable_if<
    std::is_enum<T>::value, std::string>::type
    convertUnstreamable(T const &value)
{
    return convertUnknownEnumToString(value);
}

#if defined(_MANAGED)
//! Convert a CLR string to a utf8 std::string
template <typename T>
std::string clrReferenceToString(T ^ ref)
{
    if (ref == nullptr)
        return std::string("null");
    auto bytes = System::Text::Encoding::UTF8->GetBytes(ref->ToString());
    cli::pin_ptr<System::Byte> p = &bytes[0];
    return std::string(reinterpret_cast<char const *>(p), bytes->Length);
}
#endif

} // namespace Detail

// If we decide for C++14, change these to enable_if_ts
template <typename T, typename = void>
struct StringMaker
{
    template <typename Fake = T>
    static
        typename std::enable_if<::Catch::Detail::IsStreamInsertable<Fake>::value, std::string>::type
        convert(const Fake &value)
    {
        ReusableStringStream rss;
        // NB: call using the function-like syntax to avoid ambiguity with
        // user-defined templated operator<< under clang.
        rss.operator<<(value);
        return rss.str();
    }

    template <typename Fake = T>
    static
        typename std::enable_if<!::Catch::Detail::IsStreamInsertable<Fake>::value, std::string>::type
        convert(const Fake &value)
    {
#if !defined(CATCH_CONFIG_FALLBACK_STRINGIFIER)
        return Detail::convertUnstreamable(value);
#else
        return CATCH_CONFIG_FALLBACK_STRINGIFIER(value);
#endif
    }
};

namespace Detail
{

// This function dispatches all stringification requests inside of Catch.
// Should be preferably called fully qualified, like ::Catch::Detail::stringify
template <typename T>
std::string stringify(const T &e)
{
    return ::Catch::StringMaker<typename std::remove_cv<typename std::remove_reference<T>::type>::type>::convert(e);
}

template <typename E>
std::string convertUnknownEnumToString(E e)
{
    return ::Catch::Detail::stringify(static_cast<typename std::underlying_type<E>::type>(e));
}

#if defined(_MANAGED)
template <typename T>
std::string stringify(T ^ e)
{
    return ::Catch::StringMaker<T ^>::convert(e);
}
#endif

} // namespace Detail

// Some predefined specializations

template <>
struct StringMaker<std::string>
{
    static std::string convert(const std::string &str);
};
#ifdef CATCH_CONFIG_WCHAR
template <>
struct StringMaker<std::wstring>
{
    static std::string convert(const std::wstring &wstr);
};
#endif

template <>
struct StringMaker<char const *>
{
    static std::string convert(char const *str);
};
template <>
struct StringMaker<char *>
{
    static std::string convert(char *str);
};

#ifdef CATCH_CONFIG_WCHAR
template <>
struct StringMaker<wchar_t const *>
{
    static std::string convert(wchar_t const *str);
};
template <>
struct StringMaker<wchar_t *>
{
    static std::string convert(wchar_t *str);
};
#endif

// TBD: Should we use `strnlen` to ensure that we don't go out of the buffer,
//      while keeping string semantics?
template <int SZ>
struct StringMaker<char[SZ]>
{
    static std::string convert(char const *str)
    {
        return ::Catch::Detail::stringify(std::string{str});
    }
};
template <int SZ>
struct StringMaker<signed char[SZ]>
{
    static std::string convert(signed char const *str)
    {
        return ::Catch::Detail::stringify(std::string{reinterpret_cast<char const *>(str)});
    }
};
template <int SZ>
struct StringMaker<unsigned char[SZ]>
{
    static std::string convert(unsigned char const *str)
    {
        return ::Catch::Detail::stringify(std::string{reinterpret_cast<char const *>(str)});
    }
};

template <>
struct StringMaker<int>
{
    static std::string convert(int value);
};
template <>
struct StringMaker<long>
{
    static std::string convert(long value);
};
template <>
struct StringMaker<long long>
{
    static std::string convert(long long value);
};
template <>
struct StringMaker<unsigned int>
{
    static std::string convert(unsigned int value);
};
template <>
struct StringMaker<unsigned long>
{
    static std::string convert(unsigned long value);
};
template <>
struct StringMaker<unsigned long long>
{
    static std::string convert(unsigned long long value);
};

template <>
struct StringMaker<bool>
{
    static std::string convert(bool b);
};

template <>
struct StringMaker<char>
{
    static std::string convert(char c);
};
template <>
struct StringMaker<signed char>
{
    static std::string convert(signed char c);
};
template <>
struct StringMaker<unsigned char>
{
    static std::string convert(unsigned char c);
};

template <>
struct StringMaker<std::nullptr_t>
{
    static std::string convert(std::nullptr_t);
};

template <>
struct StringMaker<float>
{
    static std::string convert(float value);
};
template <>
struct StringMaker<double>
{
    static std::string convert(double value);
};

template <typename T>
struct StringMaker<T *>
{
    template <typename U>
    static std::string convert(U *p)
    {
        if (p)
        {
            return ::Catch::Detail::rawMemoryToString(p);
        }
        else
        {
            return "nullptr";
        }
    }
};

template <typename R, typename C>
struct StringMaker<R C::*>
{
    static std::string convert(R C::*p)
    {
        if (p)
        {
            return ::Catch::Detail::rawMemoryToString(p);
        }
        else
        {
            return "nullptr";
        }
    }
};

#if defined(_MANAGED)
template <typename T>
struct StringMaker<T ^>
{
    static std::string convert(T ^ ref)
    {
        return ::Catch::Detail::clrReferenceToString(ref);
    }
};
#endif

namespace Detail
{
template <typename InputIterator>
std::string rangeToString(InputIterator first, InputIterator last)
{
    ReusableStringStream rss;
    rss << "{ ";
    if (first != last)
    {
        rss << ::Catch::Detail::stringify(*first);
        for (++first; first != last; ++first)
            rss << ", " << ::Catch::Detail::stringify(*first);
    }
    rss << " }";
    return rss.str();
}
} // namespace Detail

#ifdef __OBJC__
template <>
struct StringMaker<NSString *>
{
    static std::string convert(NSString *nsstring)
    {
        if (!nsstring)
            return "nil";
        return std::string("@") + [nsstring UTF8String];
    }
};
template <>
struct StringMaker<NSObject *>
{
    static std::string convert(NSObject *nsObject)
    {
        return ::Catch::Detail::stringify([nsObject description]);
    }
};
namespace Detail
{
inline std::string stringify(NSString *nsstring)
{
    return StringMaker<NSString *>::convert(nsstring);
}

} // namespace Detail
#endif // __OBJC__

} // namespace Catch

//////////////////////////////////////////////////////
// Separate std-lib types stringification, so it can be selectively enabled
// This means that we do not bring in

#if defined(CATCH_CONFIG_ENABLE_ALL_STRINGMAKERS)
#define CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER
#define CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER
#define CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER
#endif

// Separate std::pair specialization
#if defined(CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER)
#include <utility>
namespace Catch
{
template <typename T1, typename T2>
struct StringMaker<std::pair<T1, T2>>
{
    static std::string convert(const std::pair<T1, T2> &pair)
    {
        ReusableStringStream rss;
        rss << "{ "
            << ::Catch::Detail::stringify(pair.first)
            << ", "
            << ::Catch::Detail::stringify(pair.second)
            << " }";
        return rss.str();
    }
};
} // namespace Catch
#endif // CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER

// Separate std::tuple specialization
#if defined(CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER)
#include <tuple>
namespace Catch
{
namespace Detail
{
template <
    typename Tuple,
    std::size_t N = 0,
    bool = (N < std::tuple_size<Tuple>::value)>
struct TupleElementPrinter
{
    static void print(const Tuple &tuple, std::ostream &os)
    {
        os << (N ? ", " : " ")
           << ::Catch::Detail::stringify(std::get<N>(tuple));
        TupleElementPrinter<Tuple, N + 1>::print(tuple, os);
    }
};

template <
    typename Tuple,
    std::size_t N>
struct TupleElementPrinter<Tuple, N, false>
{
    static void print(const Tuple &, std::ostream &) {}
};

} // namespace Detail

template <typename... Types>
struct StringMaker<std::tuple<Types...>>
{
    static std::string convert(const std::tuple<Types...> &tuple)
    {
        ReusableStringStream rss;
        rss << '{';
        Detail::TupleElementPrinter<std::tuple<Types...>>::print(tuple, rss.get());
        rss << " }";
        return rss.str();
    }
};
} // namespace Catch
#endif // CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER

namespace Catch
{
struct not_this_one
{
}; // Tag type for detecting which begin/ end are being selected

// Import begin/ end from std here so they are considered alongside the fallback (...) overloads in this namespace
using std::begin;
using std::end;

not_this_one begin(...);
not_this_one end(...);

template <typename T>
struct is_range
{
    static const bool value = !std::is_same<decltype(begin(std::declval<T>())), not_this_one>::value && !std::is_same<decltype(end(std::declval<T>())), not_this_one>::value;
};

#if defined(_MANAGED) // Managed types are never ranges
template <typename T>
struct is_range<T ^>
{
    static const bool value = false;
};
#endif

template <typename Range>
std::string rangeToString(Range const &range)
{
    return ::Catch::Detail::rangeToString(begin(range), end(range));
}

// Handle vector<bool> specially
template <typename Allocator>
std::string rangeToString(std::vector<bool, Allocator> const &v)
{
    ReusableStringStream rss;
    rss << "{ ";
    bool first = true;
    for (bool b : v)
    {
        if (first)
            first = false;
        else
            rss << ", ";
        rss << ::Catch::Detail::stringify(b);
    }
    rss << " }";
    return rss.str();
}

template <typename R>
struct StringMaker<R, typename std::enable_if<is_range<R>::value && !::Catch::Detail::IsStreamInsertable<R>::value>::type>
{
    static std::string convert(R const &range)
    {
        return rangeToString(range);
    }
};

template <typename T, int SZ>
struct StringMaker<T[SZ]>
{
    static std::string convert(T const (&arr)[SZ])
    {
        return rangeToString(arr);
    }
};

} // namespace Catch

// Separate std::chrono::duration specialization
#if defined(CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER)
#include <chrono>
#include <ctime>
#include <ratio>

namespace Catch
{

template <class Ratio>
struct ratio_string
{
    static std::string symbol();
};

template <class Ratio>
std::string ratio_string<Ratio>::symbol()
{
    Catch::ReusableStringStream rss;
    rss << '[' << Ratio::num << '/'
        << Ratio::den << ']';
    return rss.str();
}
template <>
struct ratio_string<std::atto>
{
    static std::string symbol();
};
template <>
struct ratio_string<std::femto>
{
    static std::string symbol();
};
template <>
struct ratio_string<std::pico>
{
    static std::string symbol();
};
template <>
struct ratio_string<std::nano>
{
    static std::string symbol();
};
template <>
struct ratio_string<std::micro>
{
    static std::string symbol();
};
template <>
struct ratio_string<std::milli>
{
    static std::string symbol();
};

////////////
// std::chrono::duration specializations
template <typename Value, typename Ratio>
struct StringMaker<std::chrono::duration<Value, Ratio>>
{
    static std::string convert(std::chrono::duration<Value, Ratio> const &duration)
    {
        ReusableStringStream rss;
        rss << duration.count() << ' ' << ratio_string<Ratio>::symbol() << 's';
        return rss.str();
    }
};
template <typename Value>
struct StringMaker<std::chrono::duration<Value, std::ratio<1>>>
{
    static std::string convert(std::chrono::duration<Value, std::ratio<1>> const &duration)
    {
        ReusableStringStream rss;
        rss << duration.count() << " s";
        return rss.str();
    }
};
template <typename Value>
struct StringMaker<std::chrono::duration<Value, std::ratio<60>>>
{
    static std::string convert(std::chrono::duration<Value, std::ratio<60>> const &duration)
    {
        ReusableStringStream rss;
        rss << duration.count() << " m";
        return rss.str();
    }
};
template <typename Value>
struct StringMaker<std::chrono::duration<Value, std::ratio<3600>>>
{
    static std::string convert(std::chrono::duration<Value, std::ratio<3600>> const &duration)
    {
        ReusableStringStream rss;
        rss << duration.count() << " h";
        return rss.str();
    }
};

////////////
// std::chrono::time_point specialization
// Generic time_point cannot be specialized, only std::chrono::time_point<system_clock>
template <typename Clock, typename Duration>
struct StringMaker<std::chrono::time_point<Clock, Duration>>
{
    static std::string convert(std::chrono::time_point<Clock, Duration> const &time_point)
    {
        return ::Catch::Detail::stringify(time_point.time_since_epoch()) + " since epoch";
    }
};
// std::chrono::time_point<system_clock> specialization
template <typename Duration>
struct StringMaker<std::chrono::time_point<std::chrono::system_clock, Duration>>
{
    static std::string convert(std::chrono::time_point<std::chrono::system_clock, Duration> const &time_point)
    {
        auto converted = std::chrono::system_clock::to_time_t(time_point);

#ifdef _MSC_VER
        std::tm timeInfo = {};
        gmtime_s(&timeInfo, &converted);
#else
        std::tm *timeInfo = std::gmtime(&converted);
#endif

        auto const timeStampSize = sizeof("2017-01-16T17:06:45Z");
        char timeStamp[timeStampSize];
        const char *const fmt = "%Y-%m-%dT%H:%M:%SZ";

#ifdef _MSC_VER
        std::strftime(timeStamp, timeStampSize, fmt, &timeInfo);
#else
        std::strftime(timeStamp, timeStampSize, fmt, timeInfo);
#endif
        return std::string(timeStamp);
    }
};
} // namespace Catch
#endif // CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER

#ifdef _MSC_VER
#pragma warning(pop)
#endif

// end catch_tostring.h
#include <iosfwd>

#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable : 4389) // '==' : signed/unsigned mismatch
#pragma warning(disable : 4018) // more "signed/unsigned mismatch"
#pragma warning(disable : 4312) // Converting int to T* using reinterpret_cast (issue on x64 platform)
#pragma warning(disable : 4180) // qualifier applied to function type has no meaning
#endif

namespace Catch
{

struct ITransientExpression
{
    auto isBinaryExpression() const -> bool { return m_isBinaryExpression; }
    auto getResult() const -> bool { return m_result; }
    virtual void streamReconstructedExpression(std::ostream &os) const = 0;

    ITransientExpression(bool isBinaryExpression, bool result)
        : m_isBinaryExpression(isBinaryExpression), m_result(result)
    {
    }

    // We don't actually need a virtual destructor, but many static analysers
    // complain if it's not here :-(
    virtual ~ITransientExpression();

    bool m_isBinaryExpression;
    bool m_result;
};

void formatReconstructedExpression(std::ostream &os, std::string const &lhs, StringRef op, std::string const &rhs);

template <typename LhsT, typename RhsT>
class BinaryExpr : public ITransientExpression
{
    LhsT m_lhs;
    StringRef m_op;
    RhsT m_rhs;

    void streamReconstructedExpression(std::ostream &os) const override
    {
        formatReconstructedExpression(os, Catch::Detail::stringify(m_lhs), m_op, Catch::Detail::stringify(m_rhs));
    }

  public:
    BinaryExpr(bool comparisonResult, LhsT lhs, StringRef op, RhsT rhs)
        : ITransientExpression{true, comparisonResult}, m_lhs(lhs), m_op(op), m_rhs(rhs)
    {
    }
};

template <typename LhsT>
class UnaryExpr : public ITransientExpression
{
    LhsT m_lhs;

    void streamReconstructedExpression(std::ostream &os) const override
    {
        os << Catch::Detail::stringify(m_lhs);
    }

  public:
    explicit UnaryExpr(LhsT lhs)
        : ITransientExpression{false, lhs ? true : false}, m_lhs(lhs)
    {
    }
};

// Specialised comparison functions to handle equality comparisons between ints and pointers (NULL deduces as an int)
template <typename LhsT, typename RhsT>
auto compareEqual(LhsT const &lhs, RhsT const &rhs) -> bool
{
    return static_cast<bool>(lhs == rhs);
}
template <typename T>
auto compareEqual(T *const &lhs, int rhs) -> bool
{
    return lhs == reinterpret_cast<void const *>(rhs);
}
template <typename T>
auto compareEqual(T *const &lhs, long rhs) -> bool
{
    return lhs == reinterpret_cast<void const *>(rhs);
}
template <typename T>
auto compareEqual(int lhs, T *const &rhs) -> bool
{
    return reinterpret_cast<void const *>(lhs) == rhs;
}
template <typename T>
auto compareEqual(long lhs, T *const &rhs) -> bool
{
    return reinterpret_cast<void const *>(lhs) == rhs;
}

template <typename LhsT, typename RhsT>
auto compareNotEqual(LhsT const &lhs, RhsT &&rhs) -> bool
{
    return static_cast<bool>(lhs != rhs);
}
template <typename T>
auto compareNotEqual(T *const &lhs, int rhs) -> bool
{
    return lhs != reinterpret_cast<void const *>(rhs);
}
template <typename T>
auto compareNotEqual(T *const &lhs, long rhs) -> bool
{
    return lhs != reinterpret_cast<void const *>(rhs);
}
template <typename T>
auto compareNotEqual(int lhs, T *const &rhs) -> bool
{
    return reinterpret_cast<void const *>(lhs) != rhs;
}
template <typename T>
auto compareNotEqual(long lhs, T *const &rhs) -> bool
{
    return reinterpret_cast<void const *>(lhs) != rhs;
}

template <typename LhsT>
class ExprLhs
{
    LhsT m_lhs;

  public:
    explicit ExprLhs(LhsT lhs)
        : m_lhs(lhs) {}

    template <typename RhsT>
    auto operator==(RhsT const &rhs) -> BinaryExpr<LhsT, RhsT const &> const
    {
        return {compareEqual(m_lhs, rhs), m_lhs, "==", rhs};
    }
    auto operator==(bool rhs) -> BinaryExpr<LhsT, bool> const
    {
        return {m_lhs == rhs, m_lhs, "==", rhs};
    }

    template <typename RhsT>
    auto operator!=(RhsT const &rhs) -> BinaryExpr<LhsT, RhsT const &> const
    {
        return {compareNotEqual(m_lhs, rhs), m_lhs, "!=", rhs};
    }
    auto operator!=(bool rhs) -> BinaryExpr<LhsT, bool> const
    {
        return {m_lhs != rhs, m_lhs, "!=", rhs};
    }

    template <typename RhsT>
    auto operator>(RhsT const &rhs) -> BinaryExpr<LhsT, RhsT const &> const
    {
        return {static_cast<bool>(m_lhs > rhs), m_lhs, ">", rhs};
    }
    template <typename RhsT>
    auto operator<(RhsT const &rhs) -> BinaryExpr<LhsT, RhsT const &> const
    {
        return {static_cast<bool>(m_lhs < rhs), m_lhs, "<", rhs};
    }
    template <typename RhsT>
    auto operator>=(RhsT const &rhs) -> BinaryExpr<LhsT, RhsT const &> const
    {
        return {static_cast<bool>(m_lhs >= rhs), m_lhs, ">=", rhs};
    }
    template <typename RhsT>
    auto operator<=(RhsT const &rhs) -> BinaryExpr<LhsT, RhsT const &> const
    {
        return {static_cast<bool>(m_lhs <= rhs), m_lhs, "<=", rhs};
    }

    auto makeUnaryExpr() const -> UnaryExpr<LhsT>
    {
        return UnaryExpr<LhsT>{m_lhs};
    }
};

void handleExpression(ITransientExpression const &expr);

template <typename T>
void handleExpression(ExprLhs<T> const &expr)
{
    handleExpression(expr.makeUnaryExpr());
}

struct Decomposer
{
    template <typename T>
    auto operator<=(T const &lhs) -> ExprLhs<T const &>
    {
        return ExprLhs<T const &>{lhs};
    }

    auto operator<=(bool value) -> ExprLhs<bool>
    {
        return ExprLhs<bool>{value};
    }
};

} // end namespace Catch

#ifdef _MSC_VER
#pragma warning(pop)
#endif

// end catch_decomposer.h
// start catch_interfaces_capture.h

#include <string>

namespace Catch
{

class AssertionResult;
struct AssertionInfo;
struct SectionInfo;
struct SectionEndInfo;
struct MessageInfo;
struct Counts;
struct BenchmarkInfo;
struct BenchmarkStats;
struct AssertionReaction;

struct ITransientExpression;

struct IResultCapture
{

    virtual ~IResultCapture();

    virtual bool sectionStarted(SectionInfo const &sectionInfo,
                                Counts &assertions)
        = 0;
    virtual void sectionEnded(SectionEndInfo const &endInfo) = 0;
    virtual void sectionEndedEarly(SectionEndInfo const &endInfo) = 0;

    virtual void benchmarkStarting(BenchmarkInfo const &info) = 0;
    virtual void benchmarkEnded(BenchmarkStats const &stats) = 0;

    virtual void pushScopedMessage(MessageInfo const &message) = 0;
    virtual void popScopedMessage(MessageInfo const &message) = 0;

    virtual void handleFatalErrorCondition(StringRef message) = 0;

    virtual void handleExpr(AssertionInfo const &info,
                            ITransientExpression const &expr,
                            AssertionReaction &reaction)
        = 0;
    virtual void handleMessage(AssertionInfo const &info,
                               ResultWas::OfType resultType,
                               StringRef const &message,
                               AssertionReaction &reaction)
        = 0;
    virtual void handleUnexpectedExceptionNotThrown(AssertionInfo const &info,
                                                    AssertionReaction &reaction)
        = 0;
    virtual void handleUnexpectedInflightException(AssertionInfo const &info,
                                                   std::string const &message,
                                                   AssertionReaction &reaction)
        = 0;
    virtual void handleIncomplete(AssertionInfo const &info) = 0;
    virtual void handleNonExpr(AssertionInfo const &info,
                               ResultWas::OfType resultType,
                               AssertionReaction &reaction)
        = 0;

    virtual bool lastAssertionPassed() = 0;
    virtual void assertionPassed() = 0;

    // Deprecated, do not use:
    virtual std::string getCurrentTestName() const = 0;
    virtual const AssertionResult *getLastResult() const = 0;
    virtual void exceptionEarlyReported() = 0;
};

IResultCapture &getResultCapture();
} // namespace Catch

// end catch_interfaces_capture.h
namespace Catch
{

struct TestFailureException
{
};
struct AssertionResultData;
struct IResultCapture;
class RunContext;

class LazyExpression
{
    friend class AssertionHandler;
    friend struct AssertionStats;
    friend class RunContext;

    ITransientExpression const *m_transientExpression = nullptr;
    bool m_isNegated;

  public:
    LazyExpression(bool isNegated);
    LazyExpression(LazyExpression const &other);
    LazyExpression &operator=(LazyExpression const &) = delete;

    explicit operator bool() const;

    friend auto operator<<(std::ostream &os, LazyExpression const &lazyExpr) -> std::ostream &;
};

struct AssertionReaction
{
    bool shouldDebugBreak = false;
    bool shouldThrow = false;
};

class AssertionHandler
{
    AssertionInfo m_assertionInfo;
    AssertionReaction m_reaction;
    bool m_completed = false;
    IResultCapture &m_resultCapture;

  public:
    AssertionHandler(StringRef macroName,
                     SourceLineInfo const &lineInfo,
                     StringRef capturedExpression,
                     ResultDisposition::Flags resultDisposition);
    ~AssertionHandler()
    {
        if (!m_completed)
        {
            m_resultCapture.handleIncomplete(m_assertionInfo);
        }
    }

    template <typename T>
    void handleExpr(ExprLhs<T> const &expr)
    {
        handleExpr(expr.makeUnaryExpr());
    }
    void handleExpr(ITransientExpression const &expr);

    void handleMessage(ResultWas::OfType resultType, StringRef const &message);

    void handleExceptionThrownAsExpected();
    void handleUnexpectedExceptionNotThrown();
    void handleExceptionNotThrownAsExpected();
    void handleThrowingCallSkipped();
    void handleUnexpectedInflightException();

    void complete();
    void setCompleted();

    // query
    auto allowThrows() const -> bool;
};

void handleExceptionMatchExpr(AssertionHandler &handler, std::string const &str, StringRef matcherString);

} // namespace Catch

// end catch_assertionhandler.h
// start catch_message.h

#include <string>

namespace Catch
{

struct MessageInfo
{
    MessageInfo(std::string const &_macroName,
                SourceLineInfo const &_lineInfo,
                ResultWas::OfType _type);

    std::string macroName;
    std::string message;
    SourceLineInfo lineInfo;
    ResultWas::OfType type;
    unsigned int sequence;

    bool operator==(MessageInfo const &other) const;
    bool operator<(MessageInfo const &other) const;

  private:
    static unsigned int globalCount;
};

struct MessageStream
{

    template <typename T>
    MessageStream &operator<<(T const &value)
    {
        m_stream << value;
        return *this;
    }

    ReusableStringStream m_stream;
};

struct MessageBuilder : MessageStream
{
    MessageBuilder(std::string const &macroName,
                   SourceLineInfo const &lineInfo,
                   ResultWas::OfType type);

    template <typename T>
    MessageBuilder &operator<<(T const &value)
    {
        m_stream << value;
        return *this;
    }

    MessageInfo m_info;
};

class ScopedMessage
{
  public:
    explicit ScopedMessage(MessageBuilder const &builder);
    ~ScopedMessage();

    MessageInfo m_info;
};

} // end namespace Catch

// end catch_message.h
#if !defined(CATCH_CONFIG_DISABLE)

#if !defined(CATCH_CONFIG_DISABLE_STRINGIFICATION)
#define CATCH_INTERNAL_STRINGIFY(...) #__VA_ARGS__
#else
#define CATCH_INTERNAL_STRINGIFY(...) "Disabled by CATCH_CONFIG_DISABLE_STRINGIFICATION"
#endif

#if defined(CATCH_CONFIG_FAST_COMPILE)

///////////////////////////////////////////////////////////////////////////////
// Another way to speed-up compilation is to omit local try-catch for REQUIRE*
// macros.
#define INTERNAL_CATCH_TRY
#define INTERNAL_CATCH_CATCH(capturer)

#else // CATCH_CONFIG_FAST_COMPILE

#define INTERNAL_CATCH_TRY try
#define INTERNAL_CATCH_CATCH(handler) \
    catch (...) { handler.handleUnexpectedInflightException(); }

#endif

#define INTERNAL_CATCH_REACT(handler) handler.complete();

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_TEST(macroName, resultDisposition, ...)                                                                                       \
    do                                                                                                                                               \
    {                                                                                                                                                \
        Catch::AssertionHandler catchAssertionHandler(macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition); \
        INTERNAL_CATCH_TRY                                                                                                                           \
        {                                                                                                                                            \
            CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS                                                                                             \
            catchAssertionHandler.handleExpr(Catch::Decomposer() <= __VA_ARGS__);                                                                    \
            CATCH_INTERNAL_UNSUPPRESS_PARENTHESES_WARNINGS                                                                                           \
        }                                                                                                                                            \
        INTERNAL_CATCH_CATCH(catchAssertionHandler)                                                                                                  \
        INTERNAL_CATCH_REACT(catchAssertionHandler)                                                                                                  \
    } while ((void)0, false && static_cast<bool>(!!(__VA_ARGS__))) // the expression here is never evaluated at runtime but it forces the compiler to give it a look
// The double negation silences MSVC's C4800 warning, the static_cast forces short-circuit evaluation if the type has overloaded &&.

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_IF(macroName, resultDisposition, ...)        \
    INTERNAL_CATCH_TEST(macroName, resultDisposition, __VA_ARGS__); \
    if (Catch::getResultCapture().lastAssertionPassed())

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_ELSE(macroName, resultDisposition, ...)      \
    INTERNAL_CATCH_TEST(macroName, resultDisposition, __VA_ARGS__); \
    if (!Catch::getResultCapture().lastAssertionPassed())

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_NO_THROW(macroName, resultDisposition, ...)                                                                                   \
    do                                                                                                                                               \
    {                                                                                                                                                \
        Catch::AssertionHandler catchAssertionHandler(macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition); \
        try                                                                                                                                          \
        {                                                                                                                                            \
            static_cast<void>(__VA_ARGS__);                                                                                                          \
            catchAssertionHandler.handleExceptionNotThrownAsExpected();                                                                              \
        }                                                                                                                                            \
        catch (...)                                                                                                                                  \
        {                                                                                                                                            \
            catchAssertionHandler.handleUnexpectedInflightException();                                                                               \
        }                                                                                                                                            \
        INTERNAL_CATCH_REACT(catchAssertionHandler)                                                                                                  \
    } while (false)

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_THROWS(macroName, resultDisposition, ...)                                                                                     \
    do                                                                                                                                               \
    {                                                                                                                                                \
        Catch::AssertionHandler catchAssertionHandler(macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition); \
        if (catchAssertionHandler.allowThrows())                                                                                                     \
            try                                                                                                                                      \
            {                                                                                                                                        \
                static_cast<void>(__VA_ARGS__);                                                                                                      \
                catchAssertionHandler.handleUnexpectedExceptionNotThrown();                                                                          \
            }                                                                                                                                        \
            catch (...)                                                                                                                              \
            {                                                                                                                                        \
                catchAssertionHandler.handleExceptionThrownAsExpected();                                                                             \
            }                                                                                                                                        \
        else                                                                                                                                         \
            catchAssertionHandler.handleThrowingCallSkipped();                                                                                       \
        INTERNAL_CATCH_REACT(catchAssertionHandler)                                                                                                  \
    } while (false)

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_THROWS_AS(macroName, exceptionType, resultDisposition, expr)                                                                                                        \
    do                                                                                                                                                                                     \
    {                                                                                                                                                                                      \
        Catch::AssertionHandler catchAssertionHandler(macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(expr) ", " CATCH_INTERNAL_STRINGIFY(exceptionType), resultDisposition); \
        if (catchAssertionHandler.allowThrows())                                                                                                                                           \
            try                                                                                                                                                                            \
            {                                                                                                                                                                              \
                static_cast<void>(expr);                                                                                                                                                   \
                catchAssertionHandler.handleUnexpectedExceptionNotThrown();                                                                                                                \
            }                                                                                                                                                                              \
            catch (exceptionType const &)                                                                                                                                                  \
            {                                                                                                                                                                              \
                catchAssertionHandler.handleExceptionThrownAsExpected();                                                                                                                   \
            }                                                                                                                                                                              \
            catch (...)                                                                                                                                                                    \
            {                                                                                                                                                                              \
                catchAssertionHandler.handleUnexpectedInflightException();                                                                                                                 \
            }                                                                                                                                                                              \
        else                                                                                                                                                                               \
            catchAssertionHandler.handleThrowingCallSkipped();                                                                                                                             \
        INTERNAL_CATCH_REACT(catchAssertionHandler)                                                                                                                                        \
    } while (false)

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_MSG(macroName, messageType, resultDisposition, ...)                                                                   \
    do                                                                                                                                       \
    {                                                                                                                                        \
        Catch::AssertionHandler catchAssertionHandler(macroName, CATCH_INTERNAL_LINEINFO, "", resultDisposition);                            \
        catchAssertionHandler.handleMessage(messageType, (Catch::MessageStream() << __VA_ARGS__ + ::Catch::StreamEndStop()).m_stream.str()); \
        INTERNAL_CATCH_REACT(catchAssertionHandler)                                                                                          \
    } while (false)

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_INFO(macroName, log) \
    Catch::ScopedMessage INTERNAL_CATCH_UNIQUE_NAME(scopedMessage)(Catch::MessageBuilder(macroName, CATCH_INTERNAL_LINEINFO, Catch::ResultWas::Info) << log);

///////////////////////////////////////////////////////////////////////////////
// Although this is matcher-based, it can be used with just a string
#define INTERNAL_CATCH_THROWS_STR_MATCHES(macroName, resultDisposition, matcher, ...)                                                                                                       \
    do                                                                                                                                                                                      \
    {                                                                                                                                                                                       \
        Catch::AssertionHandler catchAssertionHandler(macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__) ", " CATCH_INTERNAL_STRINGIFY(matcher), resultDisposition); \
        if (catchAssertionHandler.allowThrows())                                                                                                                                            \
            try                                                                                                                                                                             \
            {                                                                                                                                                                               \
                static_cast<void>(__VA_ARGS__);                                                                                                                                             \
                catchAssertionHandler.handleUnexpectedExceptionNotThrown();                                                                                                                 \
            }                                                                                                                                                                               \
            catch (...)                                                                                                                                                                     \
            {                                                                                                                                                                               \
                Catch::handleExceptionMatchExpr(catchAssertionHandler, matcher, #matcher);                                                                                                  \
            }                                                                                                                                                                               \
        else                                                                                                                                                                                \
            catchAssertionHandler.handleThrowingCallSkipped();                                                                                                                              \
        INTERNAL_CATCH_REACT(catchAssertionHandler)                                                                                                                                         \
    } while (false)

#endif // CATCH_CONFIG_DISABLE

// end catch_capture.hpp
// start catch_section.h

// start catch_section_info.h

// start catch_totals.h

#include <cstddef>

namespace Catch
{

struct Counts
{
    Counts operator-(Counts const &other) const;
    Counts &operator+=(Counts const &other);

    std::size_t total() const;
    bool allPassed() const;
    bool allOk() const;

    std::size_t passed = 0;
    std::size_t failed = 0;
    std::size_t failedButOk = 0;
};

struct Totals
{

    Totals operator-(Totals const &other) const;
    Totals &operator+=(Totals const &other);

    Totals delta(Totals const &prevTotals) const;

    int error = 0;
    Counts assertions;
    Counts testCases;
};
} // namespace Catch

// end catch_totals.h
#include <string>

namespace Catch
{

struct SectionInfo
{
    SectionInfo(SourceLineInfo const &_lineInfo,
                std::string const &_name,
                std::string const &_description = std::string());

    std::string name;
    std::string description;
    SourceLineInfo lineInfo;
};

struct SectionEndInfo
{
    SectionEndInfo(SectionInfo const &_sectionInfo, Counts const &_prevAssertions, double _durationInSeconds);

    SectionInfo sectionInfo;
    Counts prevAssertions;
    double durationInSeconds;
};

} // end namespace Catch

// end catch_section_info.h
// start catch_timer.h

#include <cstdint>

namespace Catch
{

auto getCurrentNanosecondsSinceEpoch() -> uint64_t;
auto getEstimatedClockResolution() -> uint64_t;

class Timer
{
    uint64_t m_nanoseconds = 0;

  public:
    void start();
    auto getElapsedNanoseconds() const -> uint64_t;
    auto getElapsedMicroseconds() const -> uint64_t;
    auto getElapsedMilliseconds() const -> unsigned int;
    auto getElapsedSeconds() const -> double;
};

} // namespace Catch

// end catch_timer.h
#include <string>

namespace Catch
{

class Section : NonCopyable
{
  public:
    Section(SectionInfo const &info);
    ~Section();

    // This indicates whether the section should be executed or not
    explicit operator bool() const;

  private:
    SectionInfo m_info;

    std::string m_name;
    Counts m_assertions;
    bool m_sectionIncluded;
    Timer m_timer;
};

} // end namespace Catch

#define INTERNAL_CATCH_SECTION(...) \
    if (Catch::Section const &INTERNAL_CATCH_UNIQUE_NAME(catch_internal_Section) = Catch::SectionInfo(CATCH_INTERNAL_LINEINFO, __VA_ARGS__))

// end catch_section.h
// start catch_benchmark.h

#include <cstdint>
#include <string>

namespace Catch
{

class BenchmarkLooper
{

    std::string m_name;
    std::size_t m_count = 0;
    std::size_t m_iterationsToRun = 1;
    uint64_t m_resolution;
    Timer m_timer;

    static auto getResolution() -> uint64_t;

  public:
    // Keep most of this inline as it's on the code path that is being timed
    BenchmarkLooper(StringRef name)
        : m_name(name), m_resolution(getResolution())
    {
        reportStart();
        m_timer.start();
    }

    explicit operator bool()
    {
        if (m_count < m_iterationsToRun)
            return true;
        return needsMoreIterations();
    }

    void increment()
    {
        ++m_count;
    }

    void reportStart();
    auto needsMoreIterations() -> bool;
};

} // end namespace Catch

#define BENCHMARK(name) \
    for (Catch::BenchmarkLooper looper(name); looper; looper.increment())

// end catch_benchmark.h
// start catch_interfaces_exception.h

// start catch_interfaces_registry_hub.h

#include <memory>
#include <string>

namespace Catch
{

class TestCase;
struct ITestCaseRegistry;
struct IExceptionTranslatorRegistry;
struct IExceptionTranslator;
struct IReporterRegistry;
struct IReporterFactory;
struct ITagAliasRegistry;
class StartupExceptionRegistry;

using IReporterFactoryPtr = std::shared_ptr<IReporterFactory>;

struct IRegistryHub
{
    virtual ~IRegistryHub();

    virtual IReporterRegistry const &getReporterRegistry() const = 0;
    virtual ITestCaseRegistry const &getTestCaseRegistry() const = 0;
    virtual ITagAliasRegistry const &getTagAliasRegistry() const = 0;

    virtual IExceptionTranslatorRegistry &getExceptionTranslatorRegistry() = 0;

    virtual StartupExceptionRegistry const &getStartupExceptionRegistry() const = 0;
};

struct IMutableRegistryHub
{
    virtual ~IMutableRegistryHub();
    virtual void registerReporter(std::string const &name, IReporterFactoryPtr const &factory) = 0;
    virtual void registerListener(IReporterFactoryPtr const &factory) = 0;
    virtual void registerTest(TestCase const &testInfo) = 0;
    virtual void registerTranslator(const IExceptionTranslator *translator) = 0;
    virtual void registerTagAlias(std::string const &alias, std::string const &tag, SourceLineInfo const &lineInfo) = 0;
    virtual void registerStartupException() noexcept = 0;
};

IRegistryHub &getRegistryHub();
IMutableRegistryHub &getMutableRegistryHub();
void cleanUp();
std::string translateActiveException();

} // namespace Catch

// end catch_interfaces_registry_hub.h
#if defined(CATCH_CONFIG_DISABLE)
#define INTERNAL_CATCH_TRANSLATE_EXCEPTION_NO_REG(translatorName, signature) \
    static std::string translatorName(signature)
#endif

#include <exception>
#include <string>
#include <vector>

namespace Catch
{
using exceptionTranslateFunction = std::string (*)();

struct IExceptionTranslator;
using ExceptionTranslators = std::vector<std::unique_ptr<IExceptionTranslator const>>;

struct IExceptionTranslator
{
    virtual ~IExceptionTranslator();
    virtual std::string translate(ExceptionTranslators::const_iterator it, ExceptionTranslators::const_iterator itEnd) const = 0;
};

struct IExceptionTranslatorRegistry
{
    virtual ~IExceptionTranslatorRegistry();

    virtual std::string translateActiveException() const = 0;
};

class ExceptionTranslatorRegistrar
{
    template <typename T>
    class ExceptionTranslator : public IExceptionTranslator
    {
      public:
        ExceptionTranslator(std::string (*translateFunction)(T &))
            : m_translateFunction(translateFunction)
        {
        }

        std::string translate(ExceptionTranslators::const_iterator it, ExceptionTranslators::const_iterator itEnd) const override
        {
            try
            {
                if (it == itEnd)
                    std::rethrow_exception(std::current_exception());
                else
                    return (*it)->translate(it + 1, itEnd);
            }
            catch (T &ex)
            {
                return m_translateFunction(ex);
            }
        }

      protected:
        std::string (*m_translateFunction)(T &);
    };

  public:
    template <typename T>
    ExceptionTranslatorRegistrar(std::string (*translateFunction)(T &))
    {
        getMutableRegistryHub().registerTranslator(new ExceptionTranslator<T>(translateFunction));
    }
};
} // namespace Catch

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_TRANSLATE_EXCEPTION2(translatorName, signature)                                                  \
    static std::string translatorName(signature);                                                                       \
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                                                                            \
    namespace                                                                                                           \
    {                                                                                                                   \
    Catch::ExceptionTranslatorRegistrar INTERNAL_CATCH_UNIQUE_NAME(catch_internal_ExceptionRegistrar)(&translatorName); \
    }                                                                                                                   \
    CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS                                                                          \
    static std::string translatorName(signature)

#define INTERNAL_CATCH_TRANSLATE_EXCEPTION(signature) INTERNAL_CATCH_TRANSLATE_EXCEPTION2(INTERNAL_CATCH_UNIQUE_NAME(catch_internal_ExceptionTranslator), signature)

// end catch_interfaces_exception.h
// start catch_approx.h

#include <stdexcept>
#include <type_traits>

namespace Catch
{
namespace Detail
{

class Approx
{
  private:
    bool equalityComparisonImpl(double other) const;

  public:
    explicit Approx(double value);

    static Approx custom();

    template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
    Approx operator()(T const &value)
    {
        Approx approx(static_cast<double>(value));
        approx.epsilon(m_epsilon);
        approx.margin(m_margin);
        approx.scale(m_scale);
        return approx;
    }

    template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
    explicit Approx(T const &value)
        : Approx(static_cast<double>(value))
    {
    }

    template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
    friend bool operator==(const T &lhs, Approx const &rhs)
    {
        auto lhs_v = static_cast<double>(lhs);
        return rhs.equalityComparisonImpl(lhs_v);
    }

    template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
    friend bool operator==(Approx const &lhs, const T &rhs)
    {
        return operator==(rhs, lhs);
    }

    template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
    friend bool operator!=(T const &lhs, Approx const &rhs)
    {
        return !operator==(lhs, rhs);
    }

    template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
    friend bool operator!=(Approx const &lhs, T const &rhs)
    {
        return !operator==(rhs, lhs);
    }

    template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
    friend bool operator<=(T const &lhs, Approx const &rhs)
    {
        return static_cast<double>(lhs) < rhs.m_value || lhs == rhs;
    }

    template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
    friend bool operator<=(Approx const &lhs, T const &rhs)
    {
        return lhs.m_value < static_cast<double>(rhs) || lhs == rhs;
    }

    template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
    friend bool operator>=(T const &lhs, Approx const &rhs)
    {
        return static_cast<double>(lhs) > rhs.m_value || lhs == rhs;
    }

    template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
    friend bool operator>=(Approx const &lhs, T const &rhs)
    {
        return lhs.m_value > static_cast<double>(rhs) || lhs == rhs;
    }

    template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
    Approx &epsilon(T const &newEpsilon)
    {
        double epsilonAsDouble = static_cast<double>(newEpsilon);
        if (epsilonAsDouble < 0 || epsilonAsDouble > 1.0)
        {
            throw std::domain_error("Invalid Approx::epsilon: " + Catch::Detail::stringify(epsilonAsDouble) + ", Approx::epsilon has to be between 0 and 1");
        }
        m_epsilon = epsilonAsDouble;
        return *this;
    }

    template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
    Approx &margin(T const &newMargin)
    {
        double marginAsDouble = static_cast<double>(newMargin);
        if (marginAsDouble < 0)
        {
            throw std::domain_error("Invalid Approx::margin: " + Catch::Detail::stringify(marginAsDouble) + ", Approx::Margin has to be non-negative.");
        }
        m_margin = marginAsDouble;
        return *this;
    }

    template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
    Approx &scale(T const &newScale)
    {
        m_scale = static_cast<double>(newScale);
        return *this;
    }

    std::string toString() const;

  private:
    double m_epsilon;
    double m_margin;
    double m_scale;
    double m_value;
};
} // namespace Detail

template <>
struct StringMaker<Catch::Detail::Approx>
{
    static std::string convert(Catch::Detail::Approx const &value);
};

} // end namespace Catch

// end catch_approx.h
// start catch_string_manip.h

#include <iosfwd>
#include <string>

namespace Catch
{

bool startsWith(std::string const &s, std::string const &prefix);
bool startsWith(std::string const &s, char prefix);
bool endsWith(std::string const &s, std::string const &suffix);
bool endsWith(std::string const &s, char suffix);
bool contains(std::string const &s, std::string const &infix);
void toLowerInPlace(std::string &s);
std::string toLower(std::string const &s);
std::string trim(std::string const &str);
bool replaceInPlace(std::string &str, std::string const &replaceThis, std::string const &withThis);

struct pluralise
{
    pluralise(std::size_t count, std::string const &label);

    friend std::ostream &operator<<(std::ostream &os, pluralise const &pluraliser);

    std::size_t m_count;
    std::string m_label;
};
} // namespace Catch

// end catch_string_manip.h
#ifndef CATCH_CONFIG_DISABLE_MATCHERS
// start catch_capture_matchers.h

// start catch_matchers.h

#include <string>
#include <vector>

namespace Catch
{
namespace Matchers
{
namespace Impl
{

template <typename ArgT>
struct MatchAllOf;
template <typename ArgT>
struct MatchAnyOf;
template <typename ArgT>
struct MatchNotOf;

class MatcherUntypedBase
{
  public:
    MatcherUntypedBase() = default;
    MatcherUntypedBase(MatcherUntypedBase const &) = default;
    MatcherUntypedBase &operator=(MatcherUntypedBase const &) = delete;
    std::string toString() const;

  protected:
    virtual ~MatcherUntypedBase();
    virtual std::string describe() const = 0;
    mutable std::string m_cachedToString;
};

template <typename ObjectT>
struct MatcherMethod
{
    virtual bool match(ObjectT const &arg) const = 0;
};
template <typename PtrT>
struct MatcherMethod<PtrT *>
{
    virtual bool match(PtrT *arg) const = 0;
};

template <typename T>
struct MatcherBase : MatcherUntypedBase, MatcherMethod<T>
{

    MatchAllOf<T> operator&&(MatcherBase const &other) const;
    MatchAnyOf<T> operator||(MatcherBase const &other) const;
    MatchNotOf<T> operator!() const;
};

template <typename ArgT>
struct MatchAllOf : MatcherBase<ArgT>
{
    bool match(ArgT const &arg) const override
    {
        for (auto matcher : m_matchers)
        {
            if (!matcher->match(arg))
                return false;
        }
        return true;
    }
    std::string describe() const override
    {
        std::string description;
        description.reserve(4 + m_matchers.size() * 32);
        description += "( ";
        bool first = true;
        for (auto matcher : m_matchers)
        {
            if (first)
                first = false;
            else
                description += " and ";
            description += matcher->toString();
        }
        description += " )";
        return description;
    }

    MatchAllOf<ArgT> &operator&&(MatcherBase<ArgT> const &other)
    {
        m_matchers.push_back(&other);
        return *this;
    }

    std::vector<MatcherBase<ArgT> const *> m_matchers;
};
template <typename ArgT>
struct MatchAnyOf : MatcherBase<ArgT>
{

    bool match(ArgT const &arg) const override
    {
        for (auto matcher : m_matchers)
        {
            if (matcher->match(arg))
                return true;
        }
        return false;
    }
    std::string describe() const override
    {
        std::string description;
        description.reserve(4 + m_matchers.size() * 32);
        description += "( ";
        bool first = true;
        for (auto matcher : m_matchers)
        {
            if (first)
                first = false;
            else
                description += " or ";
            description += matcher->toString();
        }
        description += " )";
        return description;
    }

    MatchAnyOf<ArgT> &operator||(MatcherBase<ArgT> const &other)
    {
        m_matchers.push_back(&other);
        return *this;
    }

    std::vector<MatcherBase<ArgT> const *> m_matchers;
};

template <typename ArgT>
struct MatchNotOf : MatcherBase<ArgT>
{

    MatchNotOf(MatcherBase<ArgT> const &underlyingMatcher)
        : m_underlyingMatcher(underlyingMatcher) {}

    bool match(ArgT const &arg) const override
    {
        return !m_underlyingMatcher.match(arg);
    }

    std::string describe() const override
    {
        return "not " + m_underlyingMatcher.toString();
    }
    MatcherBase<ArgT> const &m_underlyingMatcher;
};

template <typename T>
MatchAllOf<T> MatcherBase<T>::operator&&(MatcherBase const &other) const
{
    return MatchAllOf<T>() && *this && other;
}
template <typename T>
MatchAnyOf<T> MatcherBase<T>::operator||(MatcherBase const &other) const
{
    return MatchAnyOf<T>() || *this || other;
}
template <typename T>
MatchNotOf<T> MatcherBase<T>::operator!() const
{
    return MatchNotOf<T>(*this);
}

} // namespace Impl

} // namespace Matchers

using namespace Matchers;
using Matchers::Impl::MatcherBase;

} // namespace Catch

// end catch_matchers.h
// start catch_matchers_floating.h

#include <cmath>
#include <type_traits>

namespace Catch
{
namespace Matchers
{

namespace Floating
{

enum class FloatingPointKind : uint8_t;

struct WithinAbsMatcher : MatcherBase<double>
{
    WithinAbsMatcher(double target, double margin);
    bool match(double const &matchee) const override;
    std::string describe() const override;

  private:
    double m_target;
    double m_margin;
};

struct WithinUlpsMatcher : MatcherBase<double>
{
    WithinUlpsMatcher(double target, int ulps, FloatingPointKind baseType);
    bool match(double const &matchee) const override;
    std::string describe() const override;

  private:
    double m_target;
    int m_ulps;
    FloatingPointKind m_type;
};

} // namespace Floating

// The following functions create the actual matcher objects.
// This allows the types to be inferred
Floating::WithinUlpsMatcher WithinULP(double target, int maxUlpDiff);
Floating::WithinUlpsMatcher WithinULP(float target, int maxUlpDiff);
Floating::WithinAbsMatcher WithinAbs(double target, double margin);

} // namespace Matchers
} // namespace Catch

// end catch_matchers_floating.h
// start catch_matchers_generic.hpp

#include <functional>
#include <string>

namespace Catch
{
namespace Matchers
{
namespace Generic
{

namespace Detail
{
std::string finalizeDescription(const std::string &desc);
}

template <typename T>
class PredicateMatcher : public MatcherBase<T>
{
    std::function<bool(T const &)> m_predicate;
    std::string m_description;

  public:
    PredicateMatcher(std::function<bool(T const &)> const &elem, std::string const &descr)
        : m_predicate(std::move(elem)), m_description(Detail::finalizeDescription(descr))
    {
    }

    bool match(T const &item) const override
    {
        return m_predicate(item);
    }

    std::string describe() const override
    {
        return m_description;
    }
};

} // namespace Generic

// The following functions create the actual matcher objects.
// The user has to explicitly specify type to the function, because
// infering std::function<bool(T const&)> is hard (but possible) and
// requires a lot of TMP.
template <typename T>
Generic::PredicateMatcher<T> Predicate(std::function<bool(T const &)> const &predicate, std::string const &description = "")
{
    return Generic::PredicateMatcher<T>(predicate, description);
}

} // namespace Matchers
} // namespace Catch

// end catch_matchers_generic.hpp
// start catch_matchers_string.h

#include <string>

namespace Catch
{
namespace Matchers
{

namespace StdString
{

struct CasedString
{
    CasedString(std::string const &str, CaseSensitive::Choice caseSensitivity);
    std::string adjustString(std::string const &str) const;
    std::string caseSensitivitySuffix() const;

    CaseSensitive::Choice m_caseSensitivity;
    std::string m_str;
};

struct StringMatcherBase : MatcherBase<std::string>
{
    StringMatcherBase(std::string const &operation, CasedString const &comparator);
    std::string describe() const override;

    CasedString m_comparator;
    std::string m_operation;
};

struct EqualsMatcher : StringMatcherBase
{
    EqualsMatcher(CasedString const &comparator);
    bool match(std::string const &source) const override;
};
struct ContainsMatcher : StringMatcherBase
{
    ContainsMatcher(CasedString const &comparator);
    bool match(std::string const &source) const override;
};
struct StartsWithMatcher : StringMatcherBase
{
    StartsWithMatcher(CasedString const &comparator);
    bool match(std::string const &source) const override;
};
struct EndsWithMatcher : StringMatcherBase
{
    EndsWithMatcher(CasedString const &comparator);
    bool match(std::string const &source) const override;
};

struct RegexMatcher : MatcherBase<std::string>
{
    RegexMatcher(std::string regex, CaseSensitive::Choice caseSensitivity);
    bool match(std::string const &matchee) const override;
    std::string describe() const override;

  private:
    std::string m_regex;
    CaseSensitive::Choice m_caseSensitivity;
};

} // namespace StdString

// The following functions create the actual matcher objects.
// This allows the types to be inferred

StdString::EqualsMatcher Equals(std::string const &str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes);
StdString::ContainsMatcher Contains(std::string const &str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes);
StdString::EndsWithMatcher EndsWith(std::string const &str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes);
StdString::StartsWithMatcher StartsWith(std::string const &str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes);
StdString::RegexMatcher Matches(std::string const &regex, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes);

} // namespace Matchers
} // namespace Catch

// end catch_matchers_string.h
// start catch_matchers_vector.h

#include <algorithm>

namespace Catch
{
namespace Matchers
{

namespace Vector
{
namespace Detail
{
template <typename InputIterator, typename T>
size_t count(InputIterator first, InputIterator last, T const &item)
{
    size_t cnt = 0;
    for (; first != last; ++first)
    {
        if (*first == item)
        {
            ++cnt;
        }
    }
    return cnt;
}
template <typename InputIterator, typename T>
bool contains(InputIterator first, InputIterator last, T const &item)
{
    for (; first != last; ++first)
    {
        if (*first == item)
        {
            return true;
        }
    }
    return false;
}
} // namespace Detail

template <typename T>
struct ContainsElementMatcher : MatcherBase<std::vector<T>>
{

    ContainsElementMatcher(T const &comparator)
        : m_comparator(comparator) {}

    bool match(std::vector<T> const &v) const override
    {
        for (auto const &el : v)
        {
            if (el == m_comparator)
            {
                return true;
            }
        }
        return false;
    }

    std::string describe() const override
    {
        return "Contains: " + ::Catch::Detail::stringify(m_comparator);
    }

    T const &m_comparator;
};

template <typename T>
struct ContainsMatcher : MatcherBase<std::vector<T>>
{

    ContainsMatcher(std::vector<T> const &comparator)
        : m_comparator(comparator) {}

    bool match(std::vector<T> const &v) const override
    {
        // !TBD: see note in EqualsMatcher
        if (m_comparator.size() > v.size())
            return false;
        for (auto const &comparator : m_comparator)
        {
            auto present = false;
            for (const auto &el : v)
            {
                if (el == comparator)
                {
                    present = true;
                    break;
                }
            }
            if (!present)
            {
                return false;
            }
        }
        return true;
    }
    std::string describe() const override
    {
        return "Contains: " + ::Catch::Detail::stringify(m_comparator);
    }

    std::vector<T> const &m_comparator;
};

template <typename T>
struct EqualsMatcher : MatcherBase<std::vector<T>>
{

    EqualsMatcher(std::vector<T> const &comparator)
        : m_comparator(comparator) {}

    bool match(std::vector<T> const &v) const override
    {
        // !TBD: This currently works if all elements can be compared using !=
        // - a more general approach would be via a compare template that defaults
        // to using !=. but could be specialised for, e.g. std::vector<T> etc
        // - then just call that directly
        if (m_comparator.size() != v.size())
            return false;
        for (std::size_t i = 0; i < v.size(); ++i)
            if (m_comparator[i] != v[i])
                return false;
        return true;
    }
    std::string describe() const override
    {
        return "Equals: " + ::Catch::Detail::stringify(m_comparator);
    }
    std::vector<T> const &m_comparator;
};

template <typename T>
struct UnorderedEqualsMatcher : MatcherBase<std::vector<T>>
{
    UnorderedEqualsMatcher(std::vector<T> const &target)
        : m_target(target) {}
    bool match(std::vector<T> const &vec) const override
    {
        // Note: This is a reimplementation of std::is_permutation,
        //       because I don't want to include <algorithm> inside the common path
        if (m_target.size() != vec.size())
        {
            return false;
        }
        auto lfirst = m_target.begin(), llast = m_target.end();
        auto rfirst = vec.begin(), rlast = vec.end();
        // Cut common prefix to optimize checking of permuted parts
        while (lfirst != llast && *lfirst != *rfirst)
        {
            ++lfirst;
            ++rfirst;
        }
        if (lfirst == llast)
        {
            return true;
        }

        for (auto mid = lfirst; mid != llast; ++mid)
        {
            // Skip already counted items
            if (Detail::contains(lfirst, mid, *mid))
            {
                continue;
            }
            size_t num_vec = Detail::count(rfirst, rlast, *mid);
            if (num_vec == 0 || Detail::count(lfirst, llast, *mid) != num_vec)
            {
                return false;
            }
        }

        return true;
    }

    std::string describe() const override
    {
        return "UnorderedEquals: " + ::Catch::Detail::stringify(m_target);
    }

  private:
    std::vector<T> const &m_target;
};

} // namespace Vector

// The following functions create the actual matcher objects.
// This allows the types to be inferred

template <typename T>
Vector::ContainsMatcher<T> Contains(std::vector<T> const &comparator)
{
    return Vector::ContainsMatcher<T>(comparator);
}

template <typename T>
Vector::ContainsElementMatcher<T> VectorContains(T const &comparator)
{
    return Vector::ContainsElementMatcher<T>(comparator);
}

template <typename T>
Vector::EqualsMatcher<T> Equals(std::vector<T> const &comparator)
{
    return Vector::EqualsMatcher<T>(comparator);
}

template <typename T>
Vector::UnorderedEqualsMatcher<T> UnorderedEquals(std::vector<T> const &target)
{
    return Vector::UnorderedEqualsMatcher<T>(target);
}

} // namespace Matchers
} // namespace Catch

// end catch_matchers_vector.h
namespace Catch
{

template <typename ArgT, typename MatcherT>
class MatchExpr : public ITransientExpression
{
    ArgT const &m_arg;
    MatcherT m_matcher;
    StringRef m_matcherString;

  public:
    MatchExpr(ArgT const &arg, MatcherT const &matcher, StringRef matcherString)
        : ITransientExpression{true, matcher.match(arg)}, m_arg(arg), m_matcher(matcher), m_matcherString(matcherString)
    {
    }

    void streamReconstructedExpression(std::ostream &os) const override
    {
        auto matcherAsString = m_matcher.toString();
        os << Catch::Detail::stringify(m_arg) << ' ';
        if (matcherAsString == Detail::unprintableString)
            os << m_matcherString;
        else
            os << matcherAsString;
    }
};

using StringMatcher = Matchers::Impl::MatcherBase<std::string>;

void handleExceptionMatchExpr(AssertionHandler &handler, StringMatcher const &matcher, StringRef matcherString);

template <typename ArgT, typename MatcherT>
auto makeMatchExpr(ArgT const &arg, MatcherT const &matcher, StringRef matcherString) -> MatchExpr<ArgT, MatcherT>
{
    return MatchExpr<ArgT, MatcherT>(arg, matcher, matcherString);
}

} // namespace Catch

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CHECK_THAT(macroName, matcher, resultDisposition, arg)                                                                                                             \
    do                                                                                                                                                                              \
    {                                                                                                                                                                               \
        Catch::AssertionHandler catchAssertionHandler(macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(arg) ", " CATCH_INTERNAL_STRINGIFY(matcher), resultDisposition); \
        INTERNAL_CATCH_TRY                                                                                                                                                          \
        {                                                                                                                                                                           \
            catchAssertionHandler.handleExpr(Catch::makeMatchExpr(arg, matcher, #matcher));                                                                                         \
        }                                                                                                                                                                           \
        INTERNAL_CATCH_CATCH(catchAssertionHandler)                                                                                                                                 \
        INTERNAL_CATCH_REACT(catchAssertionHandler)                                                                                                                                 \
    } while (false)

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_THROWS_MATCHES(macroName, exceptionType, resultDisposition, matcher, ...)                                                                                                                                         \
    do                                                                                                                                                                                                                                   \
    {                                                                                                                                                                                                                                    \
        Catch::AssertionHandler catchAssertionHandler(macroName, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__) ", " CATCH_INTERNAL_STRINGIFY(exceptionType) ", " CATCH_INTERNAL_STRINGIFY(matcher), resultDisposition); \
        if (catchAssertionHandler.allowThrows())                                                                                                                                                                                         \
            try                                                                                                                                                                                                                          \
            {                                                                                                                                                                                                                            \
                static_cast<void>(__VA_ARGS__);                                                                                                                                                                                          \
                catchAssertionHandler.handleUnexpectedExceptionNotThrown();                                                                                                                                                              \
            }                                                                                                                                                                                                                            \
            catch (exceptionType const &ex)                                                                                                                                                                                              \
            {                                                                                                                                                                                                                            \
                catchAssertionHandler.handleExpr(Catch::makeMatchExpr(ex, matcher, #matcher));                                                                                                                                           \
            }                                                                                                                                                                                                                            \
            catch (...)                                                                                                                                                                                                                  \
            {                                                                                                                                                                                                                            \
                catchAssertionHandler.handleUnexpectedInflightException();                                                                                                                                                               \
            }                                                                                                                                                                                                                            \
        else                                                                                                                                                                                                                             \
            catchAssertionHandler.handleThrowingCallSkipped();                                                                                                                                                                           \
        INTERNAL_CATCH_REACT(catchAssertionHandler)                                                                                                                                                                                      \
    } while (false)

// end catch_capture_matchers.h
#endif

// These files are included here so the single_include script doesn't put them
// in the conditionally compiled sections
// start catch_test_case_info.h

#include <memory>
#include <string>
#include <vector>

#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wpadded"
#endif

namespace Catch
{

struct ITestInvoker;

struct TestCaseInfo
{
    enum SpecialProperties
    {
        None = 0,
        IsHidden = 1 << 1,
        ShouldFail = 1 << 2,
        MayFail = 1 << 3,
        Throws = 1 << 4,
        NonPortable = 1 << 5,
        Benchmark = 1 << 6
    };

    TestCaseInfo(std::string const &_name,
                 std::string const &_className,
                 std::string const &_description,
                 std::vector<std::string> const &_tags,
                 SourceLineInfo const &_lineInfo);

    friend void setTags(TestCaseInfo &testCaseInfo, std::vector<std::string> tags);

    bool isHidden() const;
    bool throws() const;
    bool okToFail() const;
    bool expectedToFail() const;

    std::string tagsAsString() const;

    std::string name;
    std::string className;
    std::string description;
    std::vector<std::string> tags;
    std::vector<std::string> lcaseTags;
    SourceLineInfo lineInfo;
    SpecialProperties properties;
};

class TestCase : public TestCaseInfo
{
  public:
    TestCase(ITestInvoker *testCase, TestCaseInfo &&info);

    TestCase withName(std::string const &_newName) const;

    void invoke() const;

    TestCaseInfo const &getTestCaseInfo() const;

    bool operator==(TestCase const &other) const;
    bool operator<(TestCase const &other) const;

  private:
    std::shared_ptr<ITestInvoker> test;
};

TestCase makeTestCase(ITestInvoker *testCase,
                      std::string const &className,
                      NameAndTags const &nameAndTags,
                      SourceLineInfo const &lineInfo);
} // namespace Catch

#ifdef __clang__
#pragma clang diagnostic pop
#endif

// end catch_test_case_info.h
// start catch_interfaces_runner.h

namespace Catch
{

struct IRunner
{
    virtual ~IRunner();
    virtual bool aborting() const = 0;
};
} // namespace Catch

// end catch_interfaces_runner.h

#ifdef __OBJC__
// start catch_objc.hpp

#import <objc/runtime.h>

#include <string>

// NB. Any general catch headers included here must be included
// in catch.hpp first to make sure they are included by the single
// header for non obj-usage

///////////////////////////////////////////////////////////////////////////////
// This protocol is really only here for (self) documenting purposes, since
// all its methods are optional.
@protocol OcFixture

@optional

- (void)setUp;
- (void)tearDown;

@end

namespace Catch
{

class OcMethod : public ITestInvoker
{

  public:
    OcMethod(Class cls, SEL sel)
        : m_cls(cls), m_sel(sel) {}

    virtual void invoke() const
    {
        id obj = [[m_cls alloc] init];

        performOptionalSelector(obj, @selector(setUp));
        performOptionalSelector(obj, m_sel);
        performOptionalSelector(obj, @selector(tearDown));

        arcSafeRelease(obj);
    }

  private:
    virtual ~OcMethod() {}

    Class m_cls;
    SEL m_sel;
};

namespace Detail
{

inline std::string getAnnotation(Class cls,
                                 std::string const &annotationName,
                                 std::string const &testCaseName)
{
    NSString *selStr = [[NSString alloc] initWithFormat:@"Catch_%s_%s", annotationName.c_str(), testCaseName.c_str()];
    SEL sel = NSSelectorFromString(selStr);
    arcSafeRelease(selStr);
    id value = performOptionalSelector(cls, sel);
    if (value)
        return [(NSString *)value UTF8String];
    return "";
}
} // namespace Detail

inline std::size_t registerTestMethods()
{
    std::size_t noTestMethods = 0;
    int noClasses = objc_getClassList(nullptr, 0);

    Class *classes = (CATCH_UNSAFE_UNRETAINED Class *)malloc(sizeof(Class) * noClasses);
    objc_getClassList(classes, noClasses);

    for (int c = 0; c < noClasses; c++)
    {
        Class cls = classes[c];
        {
            u_int count;
            Method *methods = class_copyMethodList(cls, &count);
            for (u_int m = 0; m < count; m++)
            {
                SEL selector = method_getName(methods[m]);
                std::string methodName = sel_getName(selector);
                if (startsWith(methodName, "Catch_TestCase_"))
                {
                    std::string testCaseName = methodName.substr(15);
                    std::string name = Detail::getAnnotation(cls, "Name", testCaseName);
                    std::string desc = Detail::getAnnotation(cls, "Description", testCaseName);
                    const char *className = class_getName(cls);

                    getMutableRegistryHub().registerTest(makeTestCase(new OcMethod(cls, selector), className, name.c_str(), desc.c_str(), SourceLineInfo("", 0)));
                    noTestMethods++;
                }
            }
            free(methods);
        }
    }
    return noTestMethods;
}

#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)

namespace Matchers
{
namespace Impl
{
namespace NSStringMatchers
{

struct StringHolder : MatcherBase<NSString *>
{
    StringHolder(NSString *substr)
        : m_substr([substr copy]) {}
    StringHolder(StringHolder const &other)
        : m_substr([other.m_substr copy]) {}
    StringHolder()
    {
        arcSafeRelease(m_substr);
    }

    bool match(NSString *arg) const override
    {
        return false;
    }

    NSString *CATCH_ARC_STRONG m_substr;
};

struct Equals : StringHolder
{
    Equals(NSString *substr)
        : StringHolder(substr) {}

    bool match(NSString *str) const override
    {
        return (str != nil || m_substr == nil) &&
               [str isEqualToString:m_substr];
    }

    std::string describe() const override
    {
        return "equals string: " + Catch::Detail::stringify(m_substr);
    }
};

struct Contains : StringHolder
{
    Contains(NSString *substr)
        : StringHolder(substr) {}

    bool match(NSString *str) const
    {
        return (str != nil || m_substr == nil) &&
               [str rangeOfString:m_substr].location != NSNotFound;
    }

    std::string describe() const override
    {
        return "contains string: " + Catch::Detail::stringify(m_substr);
    }
};

struct StartsWith : StringHolder
{
    StartsWith(NSString *substr)
        : StringHolder(substr) {}

    bool match(NSString *str) const override
    {
        return (str != nil || m_substr == nil) &&
               [str rangeOfString:m_substr].location == 0;
    }

    std::string describe() const override
    {
        return "starts with: " + Catch::Detail::stringify(m_substr);
    }
};
struct EndsWith : StringHolder
{
    EndsWith(NSString *substr)
        : StringHolder(substr) {}

    bool match(NSString *str) const override
    {
        return (str != nil || m_substr == nil) &&
               [str rangeOfString:m_substr].location == [str length] - [m_substr length];
    }

    std::string describe() const override
    {
        return "ends with: " + Catch::Detail::stringify(m_substr);
    }
};

} // namespace NSStringMatchers
} // namespace Impl

inline Impl::NSStringMatchers::Equals
    Equals(NSString *substr) { return Impl::NSStringMatchers::Equals(substr); }

inline Impl::NSStringMatchers::Contains
    Contains(NSString *substr) { return Impl::NSStringMatchers::Contains(substr); }

inline Impl::NSStringMatchers::StartsWith
    StartsWith(NSString *substr) { return Impl::NSStringMatchers::StartsWith(substr); }

inline Impl::NSStringMatchers::EndsWith
    EndsWith(NSString *substr) { return Impl::NSStringMatchers::EndsWith(substr); }

} // namespace Matchers

using namespace Matchers;

#endif // CATCH_CONFIG_DISABLE_MATCHERS

} // namespace Catch

///////////////////////////////////////////////////////////////////////////////
#define OC_MAKE_UNIQUE_NAME(root, uniqueSuffix) root##uniqueSuffix
#define OC_TEST_CASE2(name, desc, uniqueSuffix)                             \
    +(NSString *)OC_MAKE_UNIQUE_NAME(Catch_Name_test_, uniqueSuffix)        \
    {                                                                       \
        return @name;                                                       \
    }                                                                       \
    +(NSString *)OC_MAKE_UNIQUE_NAME(Catch_Description_test_, uniqueSuffix) \
    {                                                                       \
        return @desc;                                                       \
    }                                                                       \
    -(void)OC_MAKE_UNIQUE_NAME(Catch_TestCase_test_, uniqueSuffix)

#define OC_TEST_CASE(name, desc) OC_TEST_CASE2(name, desc, __LINE__)

// end catch_objc.hpp
#endif

#ifdef CATCH_CONFIG_EXTERNAL_INTERFACES
// start catch_external_interfaces.h

// start catch_reporter_bases.hpp

// start catch_interfaces_reporter.h

// start catch_config.hpp

// start catch_test_spec_parser.h

#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wpadded"
#endif

// start catch_test_spec.h

#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wpadded"
#endif

// start catch_wildcard_pattern.h

namespace Catch
{
class WildcardPattern
{
    enum WildcardPosition
    {
        NoWildcard = 0,
        WildcardAtStart = 1,
        WildcardAtEnd = 2,
        WildcardAtBothEnds = WildcardAtStart | WildcardAtEnd
    };

  public:
    WildcardPattern(std::string const &pattern, CaseSensitive::Choice caseSensitivity);
    virtual ~WildcardPattern() = default;
    virtual bool matches(std::string const &str) const;

  private:
    std::string adjustCase(std::string const &str) const;
    CaseSensitive::Choice m_caseSensitivity;
    WildcardPosition m_wildcard = NoWildcard;
    std::string m_pattern;
};
} // namespace Catch

// end catch_wildcard_pattern.h
#include <memory>
#include <string>
#include <vector>

namespace Catch
{

class TestSpec
{
    struct Pattern
    {
        virtual ~Pattern();
        virtual bool matches(TestCaseInfo const &testCase) const = 0;
    };
    using PatternPtr = std::shared_ptr<Pattern>;

    class NamePattern : public Pattern
    {
      public:
        NamePattern(std::string const &name);
        virtual ~NamePattern();
        virtual bool matches(TestCaseInfo const &testCase) const override;

      private:
        WildcardPattern m_wildcardPattern;
    };

    class TagPattern : public Pattern
    {
      public:
        TagPattern(std::string const &tag);
        virtual ~TagPattern();
        virtual bool matches(TestCaseInfo const &testCase) const override;

      private:
        std::string m_tag;
    };

    class ExcludedPattern : public Pattern
    {
      public:
        ExcludedPattern(PatternPtr const &underlyingPattern);
        virtual ~ExcludedPattern();
        virtual bool matches(TestCaseInfo const &testCase) const override;

      private:
        PatternPtr m_underlyingPattern;
    };

    struct Filter
    {
        std::vector<PatternPtr> m_patterns;

        bool matches(TestCaseInfo const &testCase) const;
    };

  public:
    bool hasFilters() const;
    bool matches(TestCaseInfo const &testCase) const;

  private:
    std::vector<Filter> m_filters;

    friend class TestSpecParser;
};
} // namespace Catch

#ifdef __clang__
#pragma clang diagnostic pop
#endif

// end catch_test_spec.h
// start catch_interfaces_tag_alias_registry.h

#include <string>

namespace Catch
{

struct TagAlias;

struct ITagAliasRegistry
{
    virtual ~ITagAliasRegistry();
    // Nullptr if not present
    virtual TagAlias const *find(std::string const &alias) const = 0;
    virtual std::string expandAliases(std::string const &unexpandedTestSpec) const = 0;

    static ITagAliasRegistry const &get();
};

} // end namespace Catch

// end catch_interfaces_tag_alias_registry.h
namespace Catch
{

class TestSpecParser
{
    enum Mode
    {
        None,
        Name,
        QuotedName,
        Tag,
        EscapedName
    };
    Mode m_mode = None;
    bool m_exclusion = false;
    std::size_t m_start = std::string::npos, m_pos = 0;
    std::string m_arg;
    std::vector<std::size_t> m_escapeChars;
    TestSpec::Filter m_currentFilter;
    TestSpec m_testSpec;
    ITagAliasRegistry const *m_tagAliases = nullptr;

  public:
    TestSpecParser(ITagAliasRegistry const &tagAliases);

    TestSpecParser &parse(std::string const &arg);
    TestSpec testSpec();

  private:
    void visitChar(char c);
    void startNewMode(Mode mode, std::size_t start);
    void escape();
    std::string subString() const;

    template <typename T>
    void addPattern()
    {
        std::string token = subString();
        for (std::size_t i = 0; i < m_escapeChars.size(); ++i)
            token = token.substr(0, m_escapeChars[i] - m_start - i) + token.substr(m_escapeChars[i] - m_start - i + 1);
        m_escapeChars.clear();
        if (startsWith(token, "exclude:"))
        {
            m_exclusion = true;
            token = token.substr(8);
        }
        if (!token.empty())
        {
            TestSpec::PatternPtr pattern = std::make_shared<T>(token);
            if (m_exclusion)
                pattern = std::make_shared<TestSpec::ExcludedPattern>(pattern);
            m_currentFilter.m_patterns.push_back(pattern);
        }
        m_exclusion = false;
        m_mode = None;
    }

    void addFilter();
};
TestSpec parseTestSpec(std::string const &arg);

} // namespace Catch

#ifdef __clang__
#pragma clang diagnostic pop
#endif

// end catch_test_spec_parser.h
// start catch_interfaces_config.h

#include <iosfwd>
#include <memory>
#include <string>
#include <vector>

namespace Catch
{

enum class Verbosity
{
    Quiet = 0,
    Normal,
    High
};

struct WarnAbout
{
    enum What
    {
        Nothing = 0x00,
        NoAssertions = 0x01,
        NoTests = 0x02
    };
};

struct ShowDurations
{
    enum OrNot
    {
        DefaultForReporter,
        Always,
        Never
    };
};
struct RunTests
{
    enum InWhatOrder
    {
        InDeclarationOrder,
        InLexicographicalOrder,
        InRandomOrder
    };
};
struct UseColour
{
    enum YesOrNo
    {
        Auto,
        Yes,
        No
    };
};
struct WaitForKeypress
{
    enum When
    {
        Never,
        BeforeStart = 1,
        BeforeExit = 2,
        BeforeStartAndExit = BeforeStart | BeforeExit
    };
};

class TestSpec;

struct IConfig : NonCopyable
{

    virtual ~IConfig();

    virtual bool allowThrows() const = 0;
    virtual std::ostream &stream() const = 0;
    virtual std::string name() const = 0;
    virtual bool includeSuccessfulResults() const = 0;
    virtual bool shouldDebugBreak() const = 0;
    virtual bool warnAboutMissingAssertions() const = 0;
    virtual bool warnAboutNoTests() const = 0;
    virtual int abortAfter() const = 0;
    virtual bool showInvisibles() const = 0;
    virtual ShowDurations::OrNot showDurations() const = 0;
    virtual TestSpec const &testSpec() const = 0;
    virtual bool hasTestFilters() const = 0;
    virtual RunTests::InWhatOrder runOrder() const = 0;
    virtual unsigned int rngSeed() const = 0;
    virtual int benchmarkResolutionMultiple() const = 0;
    virtual UseColour::YesOrNo useColour() const = 0;
    virtual std::vector<std::string> const &getSectionsToRun() const = 0;
    virtual Verbosity verbosity() const = 0;
};

using IConfigPtr = std::shared_ptr<IConfig const>;
} // namespace Catch

// end catch_interfaces_config.h
// Libstdc++ doesn't like incomplete classes for unique_ptr

#include <memory>
#include <string>
#include <vector>

#ifndef CATCH_CONFIG_CONSOLE_WIDTH
#define CATCH_CONFIG_CONSOLE_WIDTH 80
#endif

namespace Catch
{

struct IStream;

struct ConfigData
{
    bool listTests = false;
    bool listTags = false;
    bool listReporters = false;
    bool listTestNamesOnly = false;

    bool showSuccessfulTests = false;
    bool shouldDebugBreak = false;
    bool noThrow = false;
    bool showHelp = false;
    bool showInvisibles = false;
    bool filenamesAsTags = false;
    bool libIdentify = false;

    int abortAfter = -1;
    unsigned int rngSeed = 0;
    int benchmarkResolutionMultiple = 100;

    Verbosity verbosity = Verbosity::Normal;
    WarnAbout::What warnings = WarnAbout::Nothing;
    ShowDurations::OrNot showDurations = ShowDurations::DefaultForReporter;
    RunTests::InWhatOrder runOrder = RunTests::InDeclarationOrder;
    UseColour::YesOrNo useColour = UseColour::Auto;
    WaitForKeypress::When waitForKeypress = WaitForKeypress::Never;

    std::string outputFilename;
    std::string name;
    std::string processName;
#ifndef CATCH_CONFIG_DEFAULT_REPORTER
#define CATCH_CONFIG_DEFAULT_REPORTER "console"
#endif
    std::string reporterName = CATCH_CONFIG_DEFAULT_REPORTER;
#undef CATCH_CONFIG_DEFAULT_REPORTER

    std::vector<std::string> testsOrTags;
    std::vector<std::string> sectionsToRun;
};

class Config : public IConfig
{
  public:
    Config() = default;
    Config(ConfigData const &data);
    virtual ~Config() = default;

    std::string const &getFilename() const;

    bool listTests() const;
    bool listTestNamesOnly() const;
    bool listTags() const;
    bool listReporters() const;

    std::string getProcessName() const;
    std::string const &getReporterName() const;

    std::vector<std::string> const &getTestsOrTags() const;
    std::vector<std::string> const &getSectionsToRun() const override;

    virtual TestSpec const &testSpec() const override;
    bool hasTestFilters() const override;

    bool showHelp() const;

    // IConfig interface
    bool allowThrows() const override;
    std::ostream &stream() const override;
    std::string name() const override;
    bool includeSuccessfulResults() const override;
    bool warnAboutMissingAssertions() const override;
    bool warnAboutNoTests() const override;
    ShowDurations::OrNot showDurations() const override;
    RunTests::InWhatOrder runOrder() const override;
    unsigned int rngSeed() const override;
    int benchmarkResolutionMultiple() const override;
    UseColour::YesOrNo useColour() const override;
    bool shouldDebugBreak() const override;
    int abortAfter() const override;
    bool showInvisibles() const override;
    Verbosity verbosity() const override;

  private:
    IStream const *openStream();
    ConfigData m_data;

    std::unique_ptr<IStream const> m_stream;
    TestSpec m_testSpec;
    bool m_hasTestFilters = false;
};

} // end namespace Catch

// end catch_config.hpp
// start catch_assertionresult.h

#include <string>

namespace Catch
{

struct AssertionResultData
{
    AssertionResultData() = delete;

    AssertionResultData(ResultWas::OfType _resultType, LazyExpression const &_lazyExpression);

    std::string message;
    mutable std::string reconstructedExpression;
    LazyExpression lazyExpression;
    ResultWas::OfType resultType;

    std::string reconstructExpression() const;
};

class AssertionResult
{
  public:
    AssertionResult() = delete;
    AssertionResult(AssertionInfo const &info, AssertionResultData const &data);

    bool isOk() const;
    bool succeeded() const;
    ResultWas::OfType getResultType() const;
    bool hasExpression() const;
    bool hasMessage() const;
    std::string getExpression() const;
    std::string getExpressionInMacro() const;
    bool hasExpandedExpression() const;
    std::string getExpandedExpression() const;
    std::string getMessage() const;
    SourceLineInfo getSourceInfo() const;
    StringRef getTestMacroName() const;

    //protected:
    AssertionInfo m_info;
    AssertionResultData m_resultData;
};

} // end namespace Catch

// end catch_assertionresult.h
// start catch_option.hpp

namespace Catch
{

// An optional type
template <typename T>
class Option
{
  public:
    Option()
        : nullableValue(nullptr) {}
    Option(T const &_value)
        : nullableValue(new (storage) T(_value))
    {
    }
    Option(Option const &_other)
        : nullableValue(_other ? new (storage) T(*_other) : nullptr)
    {
    }

    ~Option()
    {
        reset();
    }

    Option &operator=(Option const &_other)
    {
        if (&_other != this)
        {
            reset();
            if (_other)
                nullableValue = new (storage) T(*_other);
        }
        return *this;
    }
    Option &operator=(T const &_value)
    {
        reset();
        nullableValue = new (storage) T(_value);
        return *this;
    }

    void reset()
    {
        if (nullableValue)
            nullableValue->~T();
        nullableValue = nullptr;
    }

    T &operator*() { return *nullableValue; }
    T const &operator*() const { return *nullableValue; }
    T *operator->() { return nullableValue; }
    const T *operator->() const { return nullableValue; }

    T valueOr(T const &defaultValue) const
    {
        return nullableValue ? *nullableValue : defaultValue;
    }

    bool some() const { return nullableValue != nullptr; }
    bool none() const { return nullableValue == nullptr; }

    bool operator!() const { return nullableValue == nullptr; }
    explicit operator bool() const
    {
        return some();
    }

  private:
    T *nullableValue;
    alignas(alignof(T)) char storage[sizeof(T)];
};

} // end namespace Catch

// end catch_option.hpp
#include <iosfwd>
#include <map>
#include <memory>
#include <set>
#include <string>

namespace Catch
{

struct ReporterConfig
{
    explicit ReporterConfig(IConfigPtr const &_fullConfig);

    ReporterConfig(IConfigPtr const &_fullConfig, std::ostream &_stream);

    std::ostream &stream() const;
    IConfigPtr fullConfig() const;

  private:
    std::ostream *m_stream;
    IConfigPtr m_fullConfig;
};

struct ReporterPreferences
{
    bool shouldRedirectStdOut = false;
};

template <typename T>
struct LazyStat : Option<T>
{
    LazyStat &operator=(T const &_value)
    {
        Option<T>::operator=(_value);
        used = false;
        return *this;
    }
    void reset()
    {
        Option<T>::reset();
        used = false;
    }
    bool used = false;
};

struct TestRunInfo
{
    TestRunInfo(std::string const &_name);
    std::string name;
};
struct GroupInfo
{
    GroupInfo(std::string const &_name,
              std::size_t _groupIndex,
              std::size_t _groupsCount);

    std::string name;
    std::size_t groupIndex;
    std::size_t groupsCounts;
};

struct AssertionStats
{
    AssertionStats(AssertionResult const &_assertionResult,
                   std::vector<MessageInfo> const &_infoMessages,
                   Totals const &_totals);

    AssertionStats(AssertionStats const &) = default;
    AssertionStats(AssertionStats &&) = default;
    AssertionStats &operator=(AssertionStats const &) = default;
    AssertionStats &operator=(AssertionStats &&) = default;
    virtual ~AssertionStats();

    AssertionResult assertionResult;
    std::vector<MessageInfo> infoMessages;
    Totals totals;
};

struct SectionStats
{
    SectionStats(SectionInfo const &_sectionInfo,
                 Counts const &_assertions,
                 double _durationInSeconds,
                 bool _missingAssertions);
    SectionStats(SectionStats const &) = default;
    SectionStats(SectionStats &&) = default;
    SectionStats &operator=(SectionStats const &) = default;
    SectionStats &operator=(SectionStats &&) = default;
    virtual ~SectionStats();

    SectionInfo sectionInfo;
    Counts assertions;
    double durationInSeconds;
    bool missingAssertions;
};

struct TestCaseStats
{
    TestCaseStats(TestCaseInfo const &_testInfo,
                  Totals const &_totals,
                  std::string const &_stdOut,
                  std::string const &_stdErr,
                  bool _aborting);

    TestCaseStats(TestCaseStats const &) = default;
    TestCaseStats(TestCaseStats &&) = default;
    TestCaseStats &operator=(TestCaseStats const &) = default;
    TestCaseStats &operator=(TestCaseStats &&) = default;
    virtual ~TestCaseStats();

    TestCaseInfo testInfo;
    Totals totals;
    std::string stdOut;
    std::string stdErr;
    bool aborting;
};

struct TestGroupStats
{
    TestGroupStats(GroupInfo const &_groupInfo,
                   Totals const &_totals,
                   bool _aborting);
    TestGroupStats(GroupInfo const &_groupInfo);

    TestGroupStats(TestGroupStats const &) = default;
    TestGroupStats(TestGroupStats &&) = default;
    TestGroupStats &operator=(TestGroupStats const &) = default;
    TestGroupStats &operator=(TestGroupStats &&) = default;
    virtual ~TestGroupStats();

    GroupInfo groupInfo;
    Totals totals;
    bool aborting;
};

struct TestRunStats
{
    TestRunStats(TestRunInfo const &_runInfo,
                 Totals const &_totals,
                 bool _aborting);

    TestRunStats(TestRunStats const &) = default;
    TestRunStats(TestRunStats &&) = default;
    TestRunStats &operator=(TestRunStats const &) = default;
    TestRunStats &operator=(TestRunStats &&) = default;
    virtual ~TestRunStats();

    TestRunInfo runInfo;
    Totals totals;
    bool aborting;
};

struct BenchmarkInfo
{
    std::string name;
};
struct BenchmarkStats
{
    BenchmarkInfo info;
    std::size_t iterations;
    uint64_t elapsedTimeInNanoseconds;
};

struct IStreamingReporter
{
    virtual ~IStreamingReporter() = default;

    // Implementing class must also provide the following static methods:
    // static std::string getDescription();
    // static std::set<Verbosity> getSupportedVerbosities()

    virtual ReporterPreferences getPreferences() const = 0;

    virtual void noMatchingTestCases(std::string const &spec) = 0;

    virtual void testRunStarting(TestRunInfo const &testRunInfo) = 0;
    virtual void testGroupStarting(GroupInfo const &groupInfo) = 0;

    virtual void testCaseStarting(TestCaseInfo const &testInfo) = 0;
    virtual void sectionStarting(SectionInfo const &sectionInfo) = 0;

    // *** experimental ***
    virtual void benchmarkStarting(BenchmarkInfo const &) {}

    virtual void assertionStarting(AssertionInfo const &assertionInfo) = 0;

    // The return value indicates if the messages buffer should be cleared:
    virtual bool assertionEnded(AssertionStats const &assertionStats) = 0;

    // *** experimental ***
    virtual void benchmarkEnded(BenchmarkStats const &) {}

    virtual void sectionEnded(SectionStats const &sectionStats) = 0;
    virtual void testCaseEnded(TestCaseStats const &testCaseStats) = 0;
    virtual void testGroupEnded(TestGroupStats const &testGroupStats) = 0;
    virtual void testRunEnded(TestRunStats const &testRunStats) = 0;

    virtual void skipTest(TestCaseInfo const &testInfo) = 0;

    // Default empty implementation provided
    virtual void fatalErrorEncountered(StringRef name);

    virtual bool isMulti() const;
};
using IStreamingReporterPtr = std::unique_ptr<IStreamingReporter>;

struct IReporterFactory
{
    virtual ~IReporterFactory();
    virtual IStreamingReporterPtr create(ReporterConfig const &config) const = 0;
    virtual std::string getDescription() const = 0;
};
using IReporterFactoryPtr = std::shared_ptr<IReporterFactory>;

struct IReporterRegistry
{
    using FactoryMap = std::map<std::string, IReporterFactoryPtr>;
    using Listeners = std::vector<IReporterFactoryPtr>;

    virtual ~IReporterRegistry();
    virtual IStreamingReporterPtr create(std::string const &name, IConfigPtr const &config) const = 0;
    virtual FactoryMap const &getFactories() const = 0;
    virtual Listeners const &getListeners() const = 0;
};

} // end namespace Catch

// end catch_interfaces_reporter.h
#include <algorithm>
#include <cassert>
#include <cfloat>
#include <cstdio>
#include <cstring>
#include <memory>
#include <ostream>

namespace Catch
{
void prepareExpandedExpression(AssertionResult &result);

// Returns double formatted as %.3f (format expected on output)
std::string getFormattedDuration(double duration);

template <typename DerivedT>
struct StreamingReporterBase : IStreamingReporter
{

    StreamingReporterBase(ReporterConfig const &_config)
        : m_config(_config.fullConfig()), stream(_config.stream())
    {
        m_reporterPrefs.shouldRedirectStdOut = false;
        if (!DerivedT::getSupportedVerbosities().count(m_config->verbosity()))
            throw std::domain_error("Verbosity level not supported by this reporter");
    }

    ReporterPreferences getPreferences() const override
    {
        return m_reporterPrefs;
    }

    static std::set<Verbosity> getSupportedVerbosities()
    {
        return {Verbosity::Normal};
    }

    ~StreamingReporterBase() override = default;

    void noMatchingTestCases(std::string const &) override {}

    void testRunStarting(TestRunInfo const &_testRunInfo) override
    {
        currentTestRunInfo = _testRunInfo;
    }
    void testGroupStarting(GroupInfo const &_groupInfo) override
    {
        currentGroupInfo = _groupInfo;
    }

    void testCaseStarting(TestCaseInfo const &_testInfo) override
    {
        currentTestCaseInfo = _testInfo;
    }
    void sectionStarting(SectionInfo const &_sectionInfo) override
    {
        m_sectionStack.push_back(_sectionInfo);
    }

    void sectionEnded(SectionStats const & /* _sectionStats */) override
    {
        m_sectionStack.pop_back();
    }
    void testCaseEnded(TestCaseStats const & /* _testCaseStats */) override
    {
        currentTestCaseInfo.reset();
    }
    void testGroupEnded(TestGroupStats const & /* _testGroupStats */) override
    {
        currentGroupInfo.reset();
    }
    void testRunEnded(TestRunStats const & /* _testRunStats */) override
    {
        currentTestCaseInfo.reset();
        currentGroupInfo.reset();
        currentTestRunInfo.reset();
    }

    void skipTest(TestCaseInfo const &) override
    {
        // Don't do anything with this by default.
        // It can optionally be overridden in the derived class.
    }

    IConfigPtr m_config;
    std::ostream &stream;

    LazyStat<TestRunInfo> currentTestRunInfo;
    LazyStat<GroupInfo> currentGroupInfo;
    LazyStat<TestCaseInfo> currentTestCaseInfo;

    std::vector<SectionInfo> m_sectionStack;
    ReporterPreferences m_reporterPrefs;
};

template <typename DerivedT>
struct CumulativeReporterBase : IStreamingReporter
{
    template <typename T, typename ChildNodeT>
    struct Node
    {
        explicit Node(T const &_value)
            : value(_value) {}
        virtual ~Node() {}

        using ChildNodes = std::vector<std::shared_ptr<ChildNodeT>>;
        T value;
        ChildNodes children;
    };
    struct SectionNode
    {
        explicit SectionNode(SectionStats const &_stats)
            : stats(_stats) {}
        virtual ~SectionNode() = default;

        bool operator==(SectionNode const &other) const
        {
            return stats.sectionInfo.lineInfo == other.stats.sectionInfo.lineInfo;
        }
        bool operator==(std::shared_ptr<SectionNode> const &other) const
        {
            return operator==(*other);
        }

        SectionStats stats;
        using ChildSections = std::vector<std::shared_ptr<SectionNode>>;
        using Assertions = std::vector<AssertionStats>;
        ChildSections childSections;
        Assertions assertions;
        std::string stdOut;
        std::string stdErr;
    };

    struct BySectionInfo
    {
        BySectionInfo(SectionInfo const &other)
            : m_other(other) {}
        BySectionInfo(BySectionInfo const &other)
            : m_other(other.m_other) {}
        bool operator()(std::shared_ptr<SectionNode> const &node) const
        {
            return ((node->stats.sectionInfo.name == m_other.name) && (node->stats.sectionInfo.lineInfo == m_other.lineInfo));
        }
        void operator=(BySectionInfo const &) = delete;

      private:
        SectionInfo const &m_other;
    };

    using TestCaseNode = Node<TestCaseStats, SectionNode>;
    using TestGroupNode = Node<TestGroupStats, TestCaseNode>;
    using TestRunNode = Node<TestRunStats, TestGroupNode>;

    CumulativeReporterBase(ReporterConfig const &_config)
        : m_config(_config.fullConfig()), stream(_config.stream())
    {
        m_reporterPrefs.shouldRedirectStdOut = false;
        if (!DerivedT::getSupportedVerbosities().count(m_config->verbosity()))
            throw std::domain_error("Verbosity level not supported by this reporter");
    }
    ~CumulativeReporterBase() override = default;

    ReporterPreferences getPreferences() const override
    {
        return m_reporterPrefs;
    }

    static std::set<Verbosity> getSupportedVerbosities()
    {
        return {Verbosity::Normal};
    }

    void testRunStarting(TestRunInfo const &) override {}
    void testGroupStarting(GroupInfo const &) override {}

    void testCaseStarting(TestCaseInfo const &) override {}

    void sectionStarting(SectionInfo const &sectionInfo) override
    {
        SectionStats incompleteStats(sectionInfo, Counts(), 0, false);
        std::shared_ptr<SectionNode> node;
        if (m_sectionStack.empty())
        {
            if (!m_rootSection)
                m_rootSection = std::make_shared<SectionNode>(incompleteStats);
            node = m_rootSection;
        }
        else
        {
            SectionNode &parentNode = *m_sectionStack.back();
            auto it = std::find_if(parentNode.childSections.begin(),
                                   parentNode.childSections.end(),
                                   BySectionInfo(sectionInfo));
            if (it == parentNode.childSections.end())
            {
                node = std::make_shared<SectionNode>(incompleteStats);
                parentNode.childSections.push_back(node);
            }
            else
                node = *it;
        }
        m_sectionStack.push_back(node);
        m_deepestSection = std::move(node);
    }

    void assertionStarting(AssertionInfo const &) override {}

    bool assertionEnded(AssertionStats const &assertionStats) override
    {
        assert(!m_sectionStack.empty());
        // AssertionResult holds a pointer to a temporary DecomposedExpression,
        // which getExpandedExpression() calls to build the expression string.
        // Our section stack copy of the assertionResult will likely outlive the
        // temporary, so it must be expanded or discarded now to avoid calling
        // a destroyed object later.
        prepareExpandedExpression(const_cast<AssertionResult &>(assertionStats.assertionResult));
        SectionNode &sectionNode = *m_sectionStack.back();
        sectionNode.assertions.push_back(assertionStats);
        return true;
    }
    void sectionEnded(SectionStats const &sectionStats) override
    {
        assert(!m_sectionStack.empty());
        SectionNode &node = *m_sectionStack.back();
        node.stats = sectionStats;
        m_sectionStack.pop_back();
    }
    void testCaseEnded(TestCaseStats const &testCaseStats) override
    {
        auto node = std::make_shared<TestCaseNode>(testCaseStats);
        assert(m_sectionStack.size() == 0);
        node->children.push_back(m_rootSection);
        m_testCases.push_back(node);
        m_rootSection.reset();

        assert(m_deepestSection);
        m_deepestSection->stdOut = testCaseStats.stdOut;
        m_deepestSection->stdErr = testCaseStats.stdErr;
    }
    void testGroupEnded(TestGroupStats const &testGroupStats) override
    {
        auto node = std::make_shared<TestGroupNode>(testGroupStats);
        node->children.swap(m_testCases);
        m_testGroups.push_back(node);
    }
    void testRunEnded(TestRunStats const &testRunStats) override
    {
        auto node = std::make_shared<TestRunNode>(testRunStats);
        node->children.swap(m_testGroups);
        m_testRuns.push_back(node);
        testRunEndedCumulative();
    }
    virtual void testRunEndedCumulative() = 0;

    void skipTest(TestCaseInfo const &) override {}

    IConfigPtr m_config;
    std::ostream &stream;
    std::vector<AssertionStats> m_assertions;
    std::vector<std::vector<std::shared_ptr<SectionNode>>> m_sections;
    std::vector<std::shared_ptr<TestCaseNode>> m_testCases;
    std::vector<std::shared_ptr<TestGroupNode>> m_testGroups;

    std::vector<std::shared_ptr<TestRunNode>> m_testRuns;

    std::shared_ptr<SectionNode> m_rootSection;
    std::shared_ptr<SectionNode> m_deepestSection;
    std::vector<std::shared_ptr<SectionNode>> m_sectionStack;
    ReporterPreferences m_reporterPrefs;
};

template <char C>
char const *getLineOfChars()
{
    static char line[CATCH_CONFIG_CONSOLE_WIDTH] = {0};
    if (!*line)
    {
        std::memset(line, C, CATCH_CONFIG_CONSOLE_WIDTH - 1);
        line[CATCH_CONFIG_CONSOLE_WIDTH - 1] = 0;
    }
    return line;
}

struct TestEventListenerBase : StreamingReporterBase<TestEventListenerBase>
{
    TestEventListenerBase(ReporterConfig const &_config);

    void assertionStarting(AssertionInfo const &) override;
    bool assertionEnded(AssertionStats const &) override;
};

} // end namespace Catch

// end catch_reporter_bases.hpp
// start catch_console_colour.h

namespace Catch
{

struct Colour
{
    enum Code
    {
        None = 0,

        White,
        Red,
        Green,
        Blue,
        Cyan,
        Yellow,
        Grey,

        Bright = 0x10,

        BrightRed = Bright | Red,
        BrightGreen = Bright | Green,
        LightGrey = Bright | Grey,
        BrightWhite = Bright | White,
        BrightYellow = Bright | Yellow,

        // By intention
        FileName = LightGrey,
        Warning = BrightYellow,
        ResultError = BrightRed,
        ResultSuccess = BrightGreen,
        ResultExpectedFailure = Warning,

        Error = BrightRed,
        Success = Green,

        OriginalExpression = Cyan,
        ReconstructedExpression = BrightYellow,

        SecondaryText = LightGrey,
        Headers = White
    };

    // Use constructed object for RAII guard
    Colour(Code _colourCode);
    Colour(Colour &&other) noexcept;
    Colour &operator=(Colour &&other) noexcept;
    ~Colour();

    // Use static method for one-shot changes
    static void use(Code _colourCode);

  private:
    bool m_moved = false;
};

std::ostream &operator<<(std::ostream &os, Colour const &);

} // end namespace Catch

// end catch_console_colour.h
// start catch_reporter_registrars.hpp

namespace Catch
{

template <typename T>
class ReporterRegistrar
{

    class ReporterFactory : public IReporterFactory
    {

        virtual IStreamingReporterPtr create(ReporterConfig const &config) const override
        {
            return std::unique_ptr<T>(new T(config));
        }

        virtual std::string getDescription() const override
        {
            return T::getDescription();
        }
    };

  public:
    explicit ReporterRegistrar(std::string const &name)
    {
        getMutableRegistryHub().registerReporter(name, std::make_shared<ReporterFactory>());
    }
};

template <typename T>
class ListenerRegistrar
{

    class ListenerFactory : public IReporterFactory
    {

        virtual IStreamingReporterPtr create(ReporterConfig const &config) const override
        {
            return std::unique_ptr<T>(new T(config));
        }
        virtual std::string getDescription() const override
        {
            return std::string();
        }
    };

  public:
    ListenerRegistrar()
    {
        getMutableRegistryHub().registerListener(std::make_shared<ListenerFactory>());
    }
};
} // namespace Catch

#if !defined(CATCH_CONFIG_DISABLE)

#define CATCH_REGISTER_REPORTER(name, reporterType)                                         \
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                                                \
    namespace                                                                               \
    {                                                                                       \
    Catch::ReporterRegistrar<reporterType> catch_internal_RegistrarFor##reporterType(name); \
    }                                                                                       \
    CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS

#define CATCH_REGISTER_LISTENER(listenerType)                                         \
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                                          \
    namespace                                                                         \
    {                                                                                 \
    Catch::ListenerRegistrar<listenerType> catch_internal_RegistrarFor##listenerType; \
    }                                                                                 \
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS
#else // CATCH_CONFIG_DISABLE

#define CATCH_REGISTER_REPORTER(name, reporterType)
#define CATCH_REGISTER_LISTENER(listenerType)

#endif // CATCH_CONFIG_DISABLE

// end catch_reporter_registrars.hpp
// Allow users to base their work off existing reporters
// start catch_reporter_compact.h

namespace Catch
{

struct CompactReporter : StreamingReporterBase<CompactReporter>
{

    using StreamingReporterBase::StreamingReporterBase;

    ~CompactReporter() override;

    static std::string getDescription();

    ReporterPreferences getPreferences() const override;

    void noMatchingTestCases(std::string const &spec) override;

    void assertionStarting(AssertionInfo const &) override;

    bool assertionEnded(AssertionStats const &_assertionStats) override;

    void sectionEnded(SectionStats const &_sectionStats) override;

    void testRunEnded(TestRunStats const &_testRunStats) override;
};

} // end namespace Catch

// end catch_reporter_compact.h
// start catch_reporter_console.h

#if defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable : 4061) // Not all labels are EXPLICITLY handled in switch \
    // Note that 4062 (not all labels are handled                                  \
    // and default is missing) is enabled
#endif

namespace Catch
{
// Fwd decls
struct SummaryColumn;
class TablePrinter;

struct ConsoleReporter : StreamingReporterBase<ConsoleReporter>
{
    std::unique_ptr<TablePrinter> m_tablePrinter;

    ConsoleReporter(ReporterConfig const &config);
    ~ConsoleReporter() override;
    static std::string getDescription();

    void noMatchingTestCases(std::string const &spec) override;

    void assertionStarting(AssertionInfo const &) override;

    bool assertionEnded(AssertionStats const &_assertionStats) override;

    void sectionStarting(SectionInfo const &_sectionInfo) override;
    void sectionEnded(SectionStats const &_sectionStats) override;

    void benchmarkStarting(BenchmarkInfo const &info) override;
    void benchmarkEnded(BenchmarkStats const &stats) override;

    void testCaseEnded(TestCaseStats const &_testCaseStats) override;
    void testGroupEnded(TestGroupStats const &_testGroupStats) override;
    void testRunEnded(TestRunStats const &_testRunStats) override;

  private:
    void lazyPrint();

    void lazyPrintWithoutClosingBenchmarkTable();
    void lazyPrintRunInfo();
    void lazyPrintGroupInfo();
    void printTestCaseAndSectionHeader();

    void printClosedHeader(std::string const &_name);
    void printOpenHeader(std::string const &_name);

    // if string has a : in first line will set indent to follow it on
    // subsequent lines
    void printHeaderString(std::string const &_string, std::size_t indent = 0);

    void printTotals(Totals const &totals);
    void printSummaryRow(std::string const &label, std::vector<SummaryColumn> const &cols, std::size_t row);

    void printTotalsDivider(Totals const &totals);
    void printSummaryDivider();

  private:
    bool m_headerPrinted = false;
};

} // end namespace Catch

#if defined(_MSC_VER)
#pragma warning(pop)
#endif

// end catch_reporter_console.h
// start catch_reporter_junit.h

// start catch_xmlwriter.h

#include <vector>

namespace Catch
{

class XmlEncode
{
  public:
    enum ForWhat
    {
        ForTextNodes,
        ForAttributes
    };

    XmlEncode(std::string const &str, ForWhat forWhat = ForTextNodes);

    void encodeTo(std::ostream &os) const;

    friend std::ostream &operator<<(std::ostream &os, XmlEncode const &xmlEncode);

  private:
    std::string m_str;
    ForWhat m_forWhat;
};

class XmlWriter
{
  public:
    class ScopedElement
    {
      public:
        ScopedElement(XmlWriter *writer);

        ScopedElement(ScopedElement &&other) noexcept;
        ScopedElement &operator=(ScopedElement &&other) noexcept;

        ~ScopedElement();

        ScopedElement &writeText(std::string const &text, bool indent = true);

        template <typename T>
        ScopedElement &writeAttribute(std::string const &name, T const &attribute)
        {
            m_writer->writeAttribute(name, attribute);
            return *this;
        }

      private:
        mutable XmlWriter *m_writer = nullptr;
    };

    XmlWriter(std::ostream &os = Catch::cout());
    ~XmlWriter();

    XmlWriter(XmlWriter const &) = delete;
    XmlWriter &operator=(XmlWriter const &) = delete;

    XmlWriter &startElement(std::string const &name);

    ScopedElement scopedElement(std::string const &name);

    XmlWriter &endElement();

    XmlWriter &writeAttribute(std::string const &name, std::string const &attribute);

    XmlWriter &writeAttribute(std::string const &name, bool attribute);

    template <typename T>
    XmlWriter &writeAttribute(std::string const &name, T const &attribute)
    {
        ReusableStringStream rss;
        rss << attribute;
        return writeAttribute(name, rss.str());
    }

    XmlWriter &writeText(std::string const &text, bool indent = true);

    XmlWriter &writeComment(std::string const &text);

    void writeStylesheetRef(std::string const &url);

    XmlWriter &writeBlankLine();

    void ensureTagClosed();

  private:
    void writeDeclaration();

    void newlineIfNecessary();

    bool m_tagIsOpen = false;
    bool m_needsNewline = false;
    std::vector<std::string> m_tags;
    std::string m_indent;
    std::ostream &m_os;
};

} // namespace Catch

// end catch_xmlwriter.h
namespace Catch
{

class JunitReporter : public CumulativeReporterBase<JunitReporter>
{
  public:
    JunitReporter(ReporterConfig const &_config);

    ~JunitReporter() override;

    static std::string getDescription();

    void noMatchingTestCases(std::string const & /*spec*/) override;

    void testRunStarting(TestRunInfo const &runInfo) override;

    void testGroupStarting(GroupInfo const &groupInfo) override;

    void testCaseStarting(TestCaseInfo const &testCaseInfo) override;
    bool assertionEnded(AssertionStats const &assertionStats) override;

    void testCaseEnded(TestCaseStats const &testCaseStats) override;

    void testGroupEnded(TestGroupStats const &testGroupStats) override;

    void testRunEndedCumulative() override;

    void writeGroup(TestGroupNode const &groupNode, double suiteTime);

    void writeTestCase(TestCaseNode const &testCaseNode);

    void writeSection(std::string const &className,
                      std::string const &rootName,
                      SectionNode const &sectionNode);

    void writeAssertions(SectionNode const &sectionNode);
    void writeAssertion(AssertionStats const &stats);

    XmlWriter xml;
    Timer suiteTimer;
    std::string stdOutForSuite;
    std::string stdErrForSuite;
    unsigned int unexpectedExceptions = 0;
    bool m_okToFail = false;
};

} // end namespace Catch

// end catch_reporter_junit.h
// start catch_reporter_xml.h

namespace Catch
{
class XmlReporter : public StreamingReporterBase<XmlReporter>
{
  public:
    XmlReporter(ReporterConfig const &_config);

    ~XmlReporter() override;

    static std::string getDescription();

    virtual std::string getStylesheetRef() const;

    void writeSourceInfo(SourceLineInfo const &sourceInfo);

  public: // StreamingReporterBase
    void noMatchingTestCases(std::string const &s) override;

    void testRunStarting(TestRunInfo const &testInfo) override;

    void testGroupStarting(GroupInfo const &groupInfo) override;

    void testCaseStarting(TestCaseInfo const &testInfo) override;

    void sectionStarting(SectionInfo const &sectionInfo) override;

    void assertionStarting(AssertionInfo const &) override;

    bool assertionEnded(AssertionStats const &assertionStats) override;

    void sectionEnded(SectionStats const &sectionStats) override;

    void testCaseEnded(TestCaseStats const &testCaseStats) override;

    void testGroupEnded(TestGroupStats const &testGroupStats) override;

    void testRunEnded(TestRunStats const &testRunStats) override;

  private:
    Timer m_testCaseTimer;
    XmlWriter m_xml;
    int m_sectionDepth = 0;
};

} // end namespace Catch

// end catch_reporter_xml.h

// end catch_external_interfaces.h
#endif

#endif // ! CATCH_CONFIG_IMPL_ONLY

#ifdef CATCH_IMPL
// start catch_impl.hpp

#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wweak-vtables"
#endif

// Keep these here for external reporters
// start catch_test_case_tracker.h

#include <memory>
#include <string>
#include <vector>

namespace Catch
{
namespace TestCaseTracking
{

struct NameAndLocation
{
    std::string name;
    SourceLineInfo location;

    NameAndLocation(std::string const &_name, SourceLineInfo const &_location);
};

struct ITracker;

using ITrackerPtr = std::shared_ptr<ITracker>;

struct ITracker
{
    virtual ~ITracker();

    // static queries
    virtual NameAndLocation const &nameAndLocation() const = 0;

    // dynamic queries
    virtual bool isComplete() const = 0; // Successfully completed or failed
    virtual bool isSuccessfullyCompleted() const = 0;
    virtual bool isOpen() const = 0; // Started but not complete
    virtual bool hasChildren() const = 0;

    virtual ITracker &parent() = 0;

    // actions
    virtual void close() = 0; // Successfully complete
    virtual void fail() = 0;
    virtual void markAsNeedingAnotherRun() = 0;

    virtual void addChild(ITrackerPtr const &child) = 0;
    virtual ITrackerPtr findChild(NameAndLocation const &nameAndLocation) = 0;
    virtual void openChild() = 0;

    // Debug/ checking
    virtual bool isSectionTracker() const = 0;
    virtual bool isIndexTracker() const = 0;
};

class TrackerContext
{

    enum RunState
    {
        NotStarted,
        Executing,
        CompletedCycle
    };

    ITrackerPtr m_rootTracker;
    ITracker *m_currentTracker = nullptr;
    RunState m_runState = NotStarted;

  public:
    static TrackerContext &instance();

    ITracker &startRun();
    void endRun();

    void startCycle();
    void completeCycle();

    bool completedCycle() const;
    ITracker &currentTracker();
    void setCurrentTracker(ITracker *tracker);
};

class TrackerBase : public ITracker
{
  protected:
    enum CycleState
    {
        NotStarted,
        Executing,
        ExecutingChildren,
        NeedsAnotherRun,
        CompletedSuccessfully,
        Failed
    };

    class TrackerHasName
    {
        NameAndLocation m_nameAndLocation;

      public:
        TrackerHasName(NameAndLocation const &nameAndLocation);
        bool operator()(ITrackerPtr const &tracker) const;
    };

    using Children = std::vector<ITrackerPtr>;
    NameAndLocation m_nameAndLocation;
    TrackerContext &m_ctx;
    ITracker *m_parent;
    Children m_children;
    CycleState m_runState = NotStarted;

  public:
    TrackerBase(NameAndLocation const &nameAndLocation, TrackerContext &ctx, ITracker *parent);

    NameAndLocation const &nameAndLocation() const override;
    bool isComplete() const override;
    bool isSuccessfullyCompleted() const override;
    bool isOpen() const override;
    bool hasChildren() const override;

    void addChild(ITrackerPtr const &child) override;

    ITrackerPtr findChild(NameAndLocation const &nameAndLocation) override;
    ITracker &parent() override;

    void openChild() override;

    bool isSectionTracker() const override;
    bool isIndexTracker() const override;

    void open();

    void close() override;
    void fail() override;
    void markAsNeedingAnotherRun() override;

  private:
    void moveToParent();
    void moveToThis();
};

class SectionTracker : public TrackerBase
{
    std::vector<std::string> m_filters;

  public:
    SectionTracker(NameAndLocation const &nameAndLocation, TrackerContext &ctx, ITracker *parent);

    bool isSectionTracker() const override;

    static SectionTracker &acquire(TrackerContext &ctx, NameAndLocation const &nameAndLocation);

    void tryOpen();

    void addInitialFilters(std::vector<std::string> const &filters);
    void addNextFilters(std::vector<std::string> const &filters);
};

class IndexTracker : public TrackerBase
{
    int m_size;
    int m_index = -1;

  public:
    IndexTracker(NameAndLocation const &nameAndLocation, TrackerContext &ctx, ITracker *parent, int size);

    bool isIndexTracker() const override;
    void close() override;

    static IndexTracker &acquire(TrackerContext &ctx, NameAndLocation const &nameAndLocation, int size);

    int index() const;

    void moveNext();
};

} // namespace TestCaseTracking

using TestCaseTracking::IndexTracker;
using TestCaseTracking::ITracker;
using TestCaseTracking::SectionTracker;
using TestCaseTracking::TrackerContext;

} // namespace Catch

// end catch_test_case_tracker.h

// start catch_leak_detector.h

namespace Catch
{

struct LeakDetector
{
    LeakDetector();
};

} // namespace Catch
// end catch_leak_detector.h
// Cpp files will be included in the single-header file here
// start catch_approx.cpp

#include <cmath>
#include <limits>

namespace
{

// Performs equivalent check of std::fabs(lhs - rhs) <= margin
// But without the subtraction to allow for INFINITY in comparison
bool marginComparison(double lhs, double rhs, double margin)
{
    return (lhs + margin >= rhs) && (rhs + margin >= lhs);
}

} // namespace

namespace Catch
{
namespace Detail
{

Approx::Approx(double value)
    : m_epsilon(std::numeric_limits<float>::epsilon() * 100), m_margin(0.0), m_scale(0.0), m_value(value)
{
}

Approx Approx::custom()
{
    return Approx(0);
}

std::string Approx::toString() const
{
    ReusableStringStream rss;
    rss << "Approx( " << ::Catch::Detail::stringify(m_value) << " )";
    return rss.str();
}

bool Approx::equalityComparisonImpl(const double other) const
{
    // First try with fixed margin, then compute margin based on epsilon, scale and Approx's value
    // Thanks to Richard Harris for his help refining the scaled margin value
    return marginComparison(m_value, other, m_margin) || marginComparison(m_value, other, m_epsilon * (m_scale + std::fabs(m_value)));
}

} // end namespace Detail

std::string StringMaker<Catch::Detail::Approx>::convert(Catch::Detail::Approx const &value)
{
    return value.toString();
}

} // end namespace Catch
// end catch_approx.cpp
// start catch_assertionhandler.cpp

// start catch_context.h

#include <memory>

namespace Catch
{

struct IResultCapture;
struct IRunner;
struct IConfig;
struct IMutableContext;

using IConfigPtr = std::shared_ptr<IConfig const>;

struct IContext
{
    virtual ~IContext();

    virtual IResultCapture *getResultCapture() = 0;
    virtual IRunner *getRunner() = 0;
    virtual IConfigPtr const &getConfig() const = 0;
};

struct IMutableContext : IContext
{
    virtual ~IMutableContext();
    virtual void setResultCapture(IResultCapture *resultCapture) = 0;
    virtual void setRunner(IRunner *runner) = 0;
    virtual void setConfig(IConfigPtr const &config) = 0;

  private:
    static IMutableContext *currentContext;
    friend IMutableContext &getCurrentMutableContext();
    friend void cleanUpContext();
    static void createContext();
};

inline IMutableContext &getCurrentMutableContext()
{
    if (!IMutableContext::currentContext)
        IMutableContext::createContext();
    return *IMutableContext::currentContext;
}

inline IContext &getCurrentContext()
{
    return getCurrentMutableContext();
}

void cleanUpContext();
} // namespace Catch

// end catch_context.h
// start catch_debugger.h

namespace Catch
{
bool isDebuggerActive();
}

#ifdef CATCH_PLATFORM_MAC

#define CATCH_TRAP() __asm__("int $3\n" \
                             :          \
                             :) /* NOLINT */

#elif defined(CATCH_PLATFORM_LINUX)
// If we can use inline assembler, do it because this allows us to break
// directly at the location of the failing check instead of breaking inside
// raise() called from it, i.e. one stack frame below.
#if defined(__GNUC__) && (defined(__i386) || defined(__x86_64))
#define CATCH_TRAP() asm volatile("int $3") /* NOLINT */
#else // Fall back to the generic way.
#include <signal.h>

#define CATCH_TRAP() raise(SIGTRAP)
#endif
#elif defined(_MSC_VER)
#define CATCH_TRAP() __debugbreak()
#elif defined(__MINGW32__)
extern "C" __declspec(dllimport) void __stdcall DebugBreak();
#define CATCH_TRAP() DebugBreak()
#endif

#ifdef CATCH_TRAP
#define CATCH_BREAK_INTO_DEBUGGER() \
    if (Catch::isDebuggerActive()) { CATCH_TRAP(); }
#else
namespace Catch
{
inline void doNothing() {}
} // namespace Catch
#define CATCH_BREAK_INTO_DEBUGGER() Catch::doNothing()
#endif

// end catch_debugger.h
// start catch_run_context.h

// start catch_fatal_condition.h

// start catch_windows_h_proxy.h

#if defined(CATCH_PLATFORM_WINDOWS)

#if !defined(NOMINMAX) && !defined(CATCH_CONFIG_NO_NOMINMAX)
#define CATCH_DEFINED_NOMINMAX
#define NOMINMAX
#endif
#if !defined(WIN32_LEAN_AND_MEAN) && !defined(CATCH_CONFIG_NO_WIN32_LEAN_AND_MEAN)
#define CATCH_DEFINED_WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif

#ifdef __AFXDLL
#include <AfxWin.h>
#else
#include <windows.h>
#endif

#ifdef CATCH_DEFINED_NOMINMAX
#undef NOMINMAX
#endif
#ifdef CATCH_DEFINED_WIN32_LEAN_AND_MEAN
#undef WIN32_LEAN_AND_MEAN
#endif

#endif // defined(CATCH_PLATFORM_WINDOWS)

// end catch_windows_h_proxy.h
#if defined(CATCH_CONFIG_WINDOWS_SEH)

namespace Catch
{

struct FatalConditionHandler
{

    static LONG CALLBACK handleVectoredException(PEXCEPTION_POINTERS ExceptionInfo);
    FatalConditionHandler();
    static void reset();
    ~FatalConditionHandler();

  private:
    static bool isSet;
    static ULONG guaranteeSize;
    static PVOID exceptionHandlerHandle;
};

} // namespace Catch

#elif defined(CATCH_CONFIG_POSIX_SIGNALS)

#include <signal.h>

namespace Catch
{

struct FatalConditionHandler
{

    static bool isSet;
    static struct sigaction oldSigActions[];
    static stack_t oldSigStack;
    static char altStackMem[];

    static void handleSignal(int sig);

    FatalConditionHandler();
    ~FatalConditionHandler();
    static void reset();
};

} // namespace Catch

#else

namespace Catch
{
struct FatalConditionHandler
{
    void reset();
};
} // namespace Catch

#endif

// end catch_fatal_condition.h
#include <string>

namespace Catch
{

struct IMutableContext;

///////////////////////////////////////////////////////////////////////////

class RunContext : public IResultCapture, public IRunner
{

  public:
    RunContext(RunContext const &) = delete;
    RunContext &operator=(RunContext const &) = delete;

    explicit RunContext(IConfigPtr const &_config, IStreamingReporterPtr &&reporter);

    ~RunContext() override;

    void testGroupStarting(std::string const &testSpec, std::size_t groupIndex, std::size_t groupsCount);
    void testGroupEnded(std::string const &testSpec, Totals const &totals, std::size_t groupIndex, std::size_t groupsCount);

    Totals runTest(TestCase const &testCase);

    IConfigPtr config() const;
    IStreamingReporter &reporter() const;

  public: // IResultCapture
    // Assertion handlers
    void handleExpr(AssertionInfo const &info,
                    ITransientExpression const &expr,
                    AssertionReaction &reaction) override;
    void handleMessage(AssertionInfo const &info,
                       ResultWas::OfType resultType,
                       StringRef const &message,
                       AssertionReaction &reaction) override;
    void handleUnexpectedExceptionNotThrown(AssertionInfo const &info,
                                            AssertionReaction &reaction) override;
    void handleUnexpectedInflightException(AssertionInfo const &info,
                                           std::string const &message,
                                           AssertionReaction &reaction) override;
    void handleIncomplete(AssertionInfo const &info) override;
    void handleNonExpr(AssertionInfo const &info,
                       ResultWas::OfType resultType,
                       AssertionReaction &reaction) override;

    bool sectionStarted(SectionInfo const &sectionInfo, Counts &assertions) override;

    void sectionEnded(SectionEndInfo const &endInfo) override;
    void sectionEndedEarly(SectionEndInfo const &endInfo) override;

    void benchmarkStarting(BenchmarkInfo const &info) override;
    void benchmarkEnded(BenchmarkStats const &stats) override;

    void pushScopedMessage(MessageInfo const &message) override;
    void popScopedMessage(MessageInfo const &message) override;

    std::string getCurrentTestName() const override;

    const AssertionResult *getLastResult() const override;

    void exceptionEarlyReported() override;

    void handleFatalErrorCondition(StringRef message) override;

    bool lastAssertionPassed() override;

    void assertionPassed() override;

  public:
    // !TBD We need to do this another way!
    bool aborting() const final;

  private:
    void runCurrentTest(std::string &redirectedCout, std::string &redirectedCerr);
    void invokeActiveTestCase();

    void resetAssertionInfo();
    bool testForMissingAssertions(Counts &assertions);

    void assertionEnded(AssertionResult const &result);
    void reportExpr(AssertionInfo const &info,
                    ResultWas::OfType resultType,
                    ITransientExpression const *expr,
                    bool negated);

    void populateReaction(AssertionReaction &reaction);

  private:
    void handleUnfinishedSections();

    TestRunInfo m_runInfo;
    IMutableContext &m_context;
    TestCase const *m_activeTestCase = nullptr;
    ITracker *m_testCaseTracker;
    Option<AssertionResult> m_lastResult;

    IConfigPtr m_config;
    Totals m_totals;
    IStreamingReporterPtr m_reporter;
    std::vector<MessageInfo> m_messages;
    AssertionInfo m_lastAssertionInfo;
    std::vector<SectionEndInfo> m_unfinishedSections;
    std::vector<ITracker *> m_activeSections;
    TrackerContext m_trackerContext;
    bool m_lastAssertionPassed = false;
    bool m_shouldReportUnexpected = true;
    bool m_includeSuccessfulResults;
};

} // end namespace Catch

// end catch_run_context.h
namespace Catch
{

auto operator<<(std::ostream &os, ITransientExpression const &expr) -> std::ostream &
{
    expr.streamReconstructedExpression(os);
    return os;
}

LazyExpression::LazyExpression(bool isNegated)
    : m_isNegated(isNegated)
{
}

LazyExpression::LazyExpression(LazyExpression const &other)
    : m_isNegated(other.m_isNegated) {}

LazyExpression::operator bool() const
{
    return m_transientExpression != nullptr;
}

auto operator<<(std::ostream &os, LazyExpression const &lazyExpr) -> std::ostream &
{
    if (lazyExpr.m_isNegated)
        os << "!";

    if (lazyExpr)
    {
        if (lazyExpr.m_isNegated && lazyExpr.m_transientExpression->isBinaryExpression())
            os << "(" << *lazyExpr.m_transientExpression << ")";
        else
            os << *lazyExpr.m_transientExpression;
    }
    else
    {
        os << "{** error - unchecked empty expression requested **}";
    }
    return os;
}

AssertionHandler::AssertionHandler(StringRef macroName,
                                   SourceLineInfo const &lineInfo,
                                   StringRef capturedExpression,
                                   ResultDisposition::Flags resultDisposition)
    : m_assertionInfo{macroName, lineInfo, capturedExpression, resultDisposition}, m_resultCapture(getResultCapture())
{
}

void AssertionHandler::handleExpr(ITransientExpression const &expr)
{
    m_resultCapture.handleExpr(m_assertionInfo, expr, m_reaction);
}
void AssertionHandler::handleMessage(ResultWas::OfType resultType, StringRef const &message)
{
    m_resultCapture.handleMessage(m_assertionInfo, resultType, message, m_reaction);
}

auto AssertionHandler::allowThrows() const -> bool
{
    return getCurrentContext().getConfig()->allowThrows();
}

void AssertionHandler::complete()
{
    setCompleted();
    if (m_reaction.shouldDebugBreak)
    {

        // If you find your debugger stopping you here then go one level up on the
        // call-stack for the code that caused it (typically a failed assertion)

        // (To go back to the test and change execution, jump over the throw, next)
        CATCH_BREAK_INTO_DEBUGGER();
    }
    if (m_reaction.shouldThrow)
        throw Catch::TestFailureException();
}
void AssertionHandler::setCompleted()
{
    m_completed = true;
}

void AssertionHandler::handleUnexpectedInflightException()
{
    m_resultCapture.handleUnexpectedInflightException(m_assertionInfo, Catch::translateActiveException(), m_reaction);
}

void AssertionHandler::handleExceptionThrownAsExpected()
{
    m_resultCapture.handleNonExpr(m_assertionInfo, ResultWas::Ok, m_reaction);
}
void AssertionHandler::handleExceptionNotThrownAsExpected()
{
    m_resultCapture.handleNonExpr(m_assertionInfo, ResultWas::Ok, m_reaction);
}

void AssertionHandler::handleUnexpectedExceptionNotThrown()
{
    m_resultCapture.handleUnexpectedExceptionNotThrown(m_assertionInfo, m_reaction);
}

void AssertionHandler::handleThrowingCallSkipped()
{
    m_resultCapture.handleNonExpr(m_assertionInfo, ResultWas::Ok, m_reaction);
}

// This is the overload that takes a string and infers the Equals matcher from it
// The more general overload, that takes any string matcher, is in catch_capture_matchers.cpp
void handleExceptionMatchExpr(AssertionHandler &handler, std::string const &str, StringRef matcherString)
{
    handleExceptionMatchExpr(handler, Matchers::Equals(str), matcherString);
}

} // namespace Catch
// end catch_assertionhandler.cpp
// start catch_assertionresult.cpp

namespace Catch
{
AssertionResultData::AssertionResultData(ResultWas::OfType _resultType, LazyExpression const &_lazyExpression)
    : lazyExpression(_lazyExpression), resultType(_resultType) {}

std::string AssertionResultData::reconstructExpression() const
{

    if (reconstructedExpression.empty())
    {
        if (lazyExpression)
        {
            ReusableStringStream rss;
            rss << lazyExpression;
            reconstructedExpression = rss.str();
        }
    }
    return reconstructedExpression;
}

AssertionResult::AssertionResult(AssertionInfo const &info, AssertionResultData const &data)
    : m_info(info), m_resultData(data)
{
}

// Result was a success
bool AssertionResult::succeeded() const
{
    return Catch::isOk(m_resultData.resultType);
}

// Result was a success, or failure is suppressed
bool AssertionResult::isOk() const
{
    return Catch::isOk(m_resultData.resultType) || shouldSuppressFailure(m_info.resultDisposition);
}

ResultWas::OfType AssertionResult::getResultType() const
{
    return m_resultData.resultType;
}

bool AssertionResult::hasExpression() const
{
    return m_info.capturedExpression[0] != 0;
}

bool AssertionResult::hasMessage() const
{
    return !m_resultData.message.empty();
}

std::string AssertionResult::getExpression() const
{
    if (isFalseTest(m_info.resultDisposition))
        return "!(" + m_info.capturedExpression + ")";
    else
        return m_info.capturedExpression;
}

std::string AssertionResult::getExpressionInMacro() const
{
    std::string expr;
    if (m_info.macroName[0] == 0)
        expr = m_info.capturedExpression;
    else
    {
        expr.reserve(m_info.macroName.size() + m_info.capturedExpression.size() + 4);
        expr += m_info.macroName;
        expr += "( ";
        expr += m_info.capturedExpression;
        expr += " )";
    }
    return expr;
}

bool AssertionResult::hasExpandedExpression() const
{
    return hasExpression() && getExpandedExpression() != getExpression();
}

std::string AssertionResult::getExpandedExpression() const
{
    std::string expr = m_resultData.reconstructExpression();
    return expr.empty() ? getExpression() : expr;
}

std::string AssertionResult::getMessage() const
{
    return m_resultData.message;
}
SourceLineInfo AssertionResult::getSourceInfo() const
{
    return m_info.lineInfo;
}

StringRef AssertionResult::getTestMacroName() const
{
    return m_info.macroName;
}

} // end namespace Catch
// end catch_assertionresult.cpp
// start catch_benchmark.cpp

namespace Catch
{

auto BenchmarkLooper::getResolution() -> uint64_t
{
    return getEstimatedClockResolution() * getCurrentContext().getConfig()->benchmarkResolutionMultiple();
}

void BenchmarkLooper::reportStart()
{
    getResultCapture().benchmarkStarting({m_name});
}
auto BenchmarkLooper::needsMoreIterations() -> bool
{
    auto elapsed = m_timer.getElapsedNanoseconds();

    // Exponentially increasing iterations until we're confident in our timer resolution
    if (elapsed < m_resolution)
    {
        m_iterationsToRun *= 10;
        return true;
    }

    getResultCapture().benchmarkEnded({{m_name}, m_count, elapsed});
    return false;
}

} // end namespace Catch
// end catch_benchmark.cpp
// start catch_capture_matchers.cpp

namespace Catch
{

using StringMatcher = Matchers::Impl::MatcherBase<std::string>;

// This is the general overload that takes a any string matcher
// There is another overload, in catch_assertionhandler.h/.cpp, that only takes a string and infers
// the Equals matcher (so the header does not mention matchers)
void handleExceptionMatchExpr(AssertionHandler &handler, StringMatcher const &matcher, StringRef matcherString)
{
    std::string exceptionMessage = Catch::translateActiveException();
    MatchExpr<std::string, StringMatcher const &> expr(exceptionMessage, matcher, matcherString);
    handler.handleExpr(expr);
}

} // namespace Catch
// end catch_capture_matchers.cpp
// start catch_commandline.cpp

// start catch_commandline.h

// start catch_clara.h

// Use Catch's value for console width (store Clara's off to the side, if present)
#ifdef CLARA_CONFIG_CONSOLE_WIDTH
#define CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
#undef CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
#endif
#define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH CATCH_CONFIG_CONSOLE_WIDTH - 1

#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wweak-vtables"
#pragma clang diagnostic ignored "-Wexit-time-destructors"
#pragma clang diagnostic ignored "-Wshadow"
#endif

// start clara.hpp
// Copyright 2017 Two Blue Cubes Ltd. All rights reserved.
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// See https://github.com/philsquared/Clara for more details

// Clara v1.1.4

#ifndef CATCH_CLARA_CONFIG_CONSOLE_WIDTH
#define CATCH_CLARA_CONFIG_CONSOLE_WIDTH 80
#endif

#ifndef CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
#define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH CATCH_CLARA_CONFIG_CONSOLE_WIDTH
#endif

#ifndef CLARA_CONFIG_OPTIONAL_TYPE
#ifdef __has_include
#if __has_include(<optional>) && __cplusplus >= 201703L
#include <optional>
#define CLARA_CONFIG_OPTIONAL_TYPE std::optional
#endif
#endif
#endif

// ----------- #included from clara_textflow.hpp -----------

// TextFlowCpp
//
// A single-header library for wrapping and laying out basic text, by Phil Nash
//
// This work is licensed under the BSD 2-Clause license.
// See the accompanying LICENSE file, or the one at https://opensource.org/licenses/BSD-2-Clause
//
// This project is hosted at https://github.com/philsquared/textflowcpp

#include <cassert>
#include <ostream>
#include <sstream>
#include <vector>

#ifndef CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
#define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH 80
#endif

namespace Catch
{
namespace clara
{
namespace TextFlow
{

inline auto isWhitespace(char c) -> bool
{
    static std::string chars = " \t\n\r";
    return chars.find(c) != std::string::npos;
}
inline auto isBreakableBefore(char c) -> bool
{
    static std::string chars = "[({<|";
    return chars.find(c) != std::string::npos;
}
inline auto isBreakableAfter(char c) -> bool
{
    static std::string chars = "])}>.,:;*+-=&/\\";
    return chars.find(c) != std::string::npos;
}

class Columns;

class Column
{
    std::vector<std::string> m_strings;
    size_t m_width = CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH;
    size_t m_indent = 0;
    size_t m_initialIndent = std::string::npos;

  public:
    class iterator
    {
        friend Column;

        Column const &m_column;
        size_t m_stringIndex = 0;
        size_t m_pos = 0;

        size_t m_len = 0;
        size_t m_end = 0;
        bool m_suffix = false;

        iterator(Column const &column, size_t stringIndex)
            : m_column(column), m_stringIndex(stringIndex)
        {
        }

        auto line() const -> std::string const & { return m_column.m_strings[m_stringIndex]; }

        auto isBoundary(size_t at) const -> bool
        {
            assert(at > 0);
            assert(at <= line().size());

            return at == line().size() || (isWhitespace(line()[at]) && !isWhitespace(line()[at - 1])) || isBreakableBefore(line()[at]) || isBreakableAfter(line()[at - 1]);
        }

        void calcLength()
        {
            assert(m_stringIndex < m_column.m_strings.size());

            m_suffix = false;
            auto width = m_column.m_width - indent();
            m_end = m_pos;
            while (m_end < line().size() && line()[m_end] != '\n')
                ++m_end;

            if (m_end < m_pos + width)
            {
                m_len = m_end - m_pos;
            }
            else
            {
                size_t len = width;
                while (len > 0 && !isBoundary(m_pos + len))
                    --len;
                while (len > 0 && isWhitespace(line()[m_pos + len - 1]))
                    --len;

                if (len > 0)
                {
                    m_len = len;
                }
                else
                {
                    m_suffix = true;
                    m_len = width - 1;
                }
            }
        }

        auto indent() const -> size_t
        {
            auto initial = m_pos == 0 && m_stringIndex == 0 ? m_column.m_initialIndent : std::string::npos;
            return initial == std::string::npos ? m_column.m_indent : initial;
        }

        auto addIndentAndSuffix(std::string const &plain) const -> std::string
        {
            return std::string(indent(), ' ') + (m_suffix ? plain + "-" : plain);
        }

      public:
        explicit iterator(Column const &column)
            : m_column(column)
        {
            assert(m_column.m_width > m_column.m_indent);
            assert(m_column.m_initialIndent == std::string::npos || m_column.m_width > m_column.m_initialIndent);
            calcLength();
            if (m_len == 0)
                m_stringIndex++; // Empty string
        }

        auto operator*() const -> std::string
        {
            assert(m_stringIndex < m_column.m_strings.size());
            assert(m_pos <= m_end);
            if (m_pos + m_column.m_width < m_end)
                return addIndentAndSuffix(line().substr(m_pos, m_len));
            else
                return addIndentAndSuffix(line().substr(m_pos, m_end - m_pos));
        }

        auto operator++() -> iterator &
        {
            m_pos += m_len;
            if (m_pos < line().size() && line()[m_pos] == '\n')
                m_pos += 1;
            else
                while (m_pos < line().size() && isWhitespace(line()[m_pos]))
                    ++m_pos;

            if (m_pos == line().size())
            {
                m_pos = 0;
                ++m_stringIndex;
            }
            if (m_stringIndex < m_column.m_strings.size())
                calcLength();
            return *this;
        }
        auto operator++(int) -> iterator
        {
            iterator prev(*this);
            operator++();
            return prev;
        }

        auto operator==(iterator const &other) const -> bool
        {
            return m_pos == other.m_pos && m_stringIndex == other.m_stringIndex && &m_column == &other.m_column;
        }
        auto operator!=(iterator const &other) const -> bool
        {
            return !operator==(other);
        }
    };
    using const_iterator = iterator;

    explicit Column(std::string const &text) { m_strings.push_back(text); }

    auto width(size_t newWidth) -> Column &
    {
        assert(newWidth > 0);
        m_width = newWidth;
        return *this;
    }
    auto indent(size_t newIndent) -> Column &
    {
        m_indent = newIndent;
        return *this;
    }
    auto initialIndent(size_t newIndent) -> Column &
    {
        m_initialIndent = newIndent;
        return *this;
    }

    auto width() const -> size_t { return m_width; }
    auto begin() const -> iterator { return iterator(*this); }
    auto end() const -> iterator { return {*this, m_strings.size()}; }

    inline friend std::ostream &operator<<(std::ostream &os, Column const &col)
    {
        bool first = true;
        for (auto line : col)
        {
            if (first)
                first = false;
            else
                os << "\n";
            os << line;
        }
        return os;
    }

    auto operator+(Column const &other) -> Columns;

    auto toString() const -> std::string
    {
        std::ostringstream oss;
        oss << *this;
        return oss.str();
    }
};

class Spacer : public Column
{

  public:
    explicit Spacer(size_t spaceWidth)
        : Column("")
    {
        width(spaceWidth);
    }
};

class Columns
{
    std::vector<Column> m_columns;

  public:
    class iterator
    {
        friend Columns;
        struct EndTag
        {
        };

        std::vector<Column> const &m_columns;
        std::vector<Column::iterator> m_iterators;
        size_t m_activeIterators;

        iterator(Columns const &columns, EndTag)
            : m_columns(columns.m_columns), m_activeIterators(0)
        {
            m_iterators.reserve(m_columns.size());

            for (auto const &col : m_columns)
                m_iterators.push_back(col.end());
        }

      public:
        explicit iterator(Columns const &columns)
            : m_columns(columns.m_columns), m_activeIterators(m_columns.size())
        {
            m_iterators.reserve(m_columns.size());

            for (auto const &col : m_columns)
                m_iterators.push_back(col.begin());
        }

        auto operator==(iterator const &other) const -> bool
        {
            return m_iterators == other.m_iterators;
        }
        auto operator!=(iterator const &other) const -> bool
        {
            return m_iterators != other.m_iterators;
        }
        auto operator*() const -> std::string
        {
            std::string row, padding;

            for (size_t i = 0; i < m_columns.size(); ++i)
            {
                auto width = m_columns[i].width();
                if (m_iterators[i] != m_columns[i].end())
                {
                    std::string col = *m_iterators[i];
                    row += padding + col;
                    if (col.size() < width)
                        padding = std::string(width - col.size(), ' ');
                    else
                        padding = "";
                }
                else
                {
                    padding += std::string(width, ' ');
                }
            }
            return row;
        }
        auto operator++() -> iterator &
        {
            for (size_t i = 0; i < m_columns.size(); ++i)
            {
                if (m_iterators[i] != m_columns[i].end())
                    ++m_iterators[i];
            }
            return *this;
        }
        auto operator++(int) -> iterator
        {
            iterator prev(*this);
            operator++();
            return prev;
        }
    };
    using const_iterator = iterator;

    auto begin() const -> iterator { return iterator(*this); }
    auto end() const -> iterator { return {*this, iterator::EndTag()}; }

    auto operator+=(Column const &col) -> Columns &
    {
        m_columns.push_back(col);
        return *this;
    }
    auto operator+(Column const &col) -> Columns
    {
        Columns combined = *this;
        combined += col;
        return combined;
    }

    inline friend std::ostream &operator<<(std::ostream &os, Columns const &cols)
    {

        bool first = true;
        for (auto line : cols)
        {
            if (first)
                first = false;
            else
                os << "\n";
            os << line;
        }
        return os;
    }

    auto toString() const -> std::string
    {
        std::ostringstream oss;
        oss << *this;
        return oss.str();
    }
};

inline auto Column::operator+(Column const &other) -> Columns
{
    Columns cols;
    cols += *this;
    cols += other;
    return cols;
}
} // namespace TextFlow
} // namespace clara
} // namespace Catch

// ----------- end of #include from clara_textflow.hpp -----------
// ........... back in clara.hpp

#include <algorithm>
#include <memory>
#include <set>

#if !defined(CATCH_PLATFORM_WINDOWS) && (defined(WIN32) || defined(__WIN32__) || defined(_WIN32) || defined(_MSC_VER))
#define CATCH_PLATFORM_WINDOWS
#endif

namespace Catch
{
namespace clara
{
namespace detail
{

// Traits for extracting arg and return type of lambdas (for single argument lambdas)
template <typename L>
struct UnaryLambdaTraits : UnaryLambdaTraits<decltype(&L::operator())>
{
};

template <typename ClassT, typename ReturnT, typename... Args>
struct UnaryLambdaTraits<ReturnT (ClassT::*)(Args...) const>
{
    static const bool isValid = false;
};

template <typename ClassT, typename ReturnT, typename ArgT>
struct UnaryLambdaTraits<ReturnT (ClassT::*)(ArgT) const>
{
    static const bool isValid = true;
    using ArgType = typename std::remove_const<typename std::remove_reference<ArgT>::type>::type;
    using ReturnType = ReturnT;
};

class TokenStream;

// Transport for raw args (copied from main args, or supplied via init list for testing)
class Args
{
    friend TokenStream;
    std::string m_exeName;
    std::vector<std::string> m_args;

  public:
    Args(int argc, char const *const *argv)
        : m_exeName(argv[0]), m_args(argv + 1, argv + argc) {}

    Args(std::initializer_list<std::string> args)
        : m_exeName(*args.begin()), m_args(args.begin() + 1, args.end())
    {
    }

    auto exeName() const -> std::string
    {
        return m_exeName;
    }
};

// Wraps a token coming from a token stream. These may not directly correspond to strings as a single string
// may encode an option + its argument if the : or = form is used
enum class TokenType
{
    Option,
    Argument
};
struct Token
{
    TokenType type;
    std::string token;
};

inline auto isOptPrefix(char c) -> bool
{
    return c == '-'
#ifdef CATCH_PLATFORM_WINDOWS
           || c == '/'
#endif
        ;
}

// Abstracts iterators into args as a stream of tokens, with option arguments uniformly handled
class TokenStream
{
    using Iterator = std::vector<std::string>::const_iterator;
    Iterator it;
    Iterator itEnd;
    std::vector<Token> m_tokenBuffer;

    void loadBuffer()
    {
        m_tokenBuffer.resize(0);

        // Skip any empty strings
        while (it != itEnd && it->empty())
            ++it;

        if (it != itEnd)
        {
            auto const &next = *it;
            if (isOptPrefix(next[0]))
            {
                auto delimiterPos = next.find_first_of(" :=");
                if (delimiterPos != std::string::npos)
                {
                    m_tokenBuffer.push_back({TokenType::Option, next.substr(0, delimiterPos)});
                    m_tokenBuffer.push_back({TokenType::Argument, next.substr(delimiterPos + 1)});
                }
                else
                {
                    if (next[1] != '-' && next.size() > 2)
                    {
                        std::string opt = "- ";
                        for (size_t i = 1; i < next.size(); ++i)
                        {
                            opt[1] = next[i];
                            m_tokenBuffer.push_back({TokenType::Option, opt});
                        }
                    }
                    else
                    {
                        m_tokenBuffer.push_back({TokenType::Option, next});
                    }
                }
            }
            else
            {
                m_tokenBuffer.push_back({TokenType::Argument, next});
            }
        }
    }

  public:
    explicit TokenStream(Args const &args)
        : TokenStream(args.m_args.begin(), args.m_args.end()) {}

    TokenStream(Iterator it, Iterator itEnd)
        : it(it), itEnd(itEnd)
    {
        loadBuffer();
    }

    explicit operator bool() const
    {
        return !m_tokenBuffer.empty() || it != itEnd;
    }

    auto count() const -> size_t { return m_tokenBuffer.size() + (itEnd - it); }

    auto operator*() const -> Token
    {
        assert(!m_tokenBuffer.empty());
        return m_tokenBuffer.front();
    }

    auto operator-> () const -> Token const *
    {
        assert(!m_tokenBuffer.empty());
        return &m_tokenBuffer.front();
    }

    auto operator++() -> TokenStream &
    {
        if (m_tokenBuffer.size() >= 2)
        {
            m_tokenBuffer.erase(m_tokenBuffer.begin());
        }
        else
        {
            if (it != itEnd)
                ++it;
            loadBuffer();
        }
        return *this;
    }
};

class ResultBase
{
  public:
    enum Type
    {
        Ok,
        LogicError,
        RuntimeError
    };

  protected:
    ResultBase(Type type)
        : m_type(type) {}
    virtual ~ResultBase() = default;

    virtual void enforceOk() const = 0;

    Type m_type;
};

template <typename T>
class ResultValueBase : public ResultBase
{
  public:
    auto value() const -> T const &
    {
        enforceOk();
        return m_value;
    }

  protected:
    ResultValueBase(Type type)
        : ResultBase(type) {}

    ResultValueBase(ResultValueBase const &other)
        : ResultBase(other)
    {
        if (m_type == ResultBase::Ok)
            new (&m_value) T(other.m_value);
    }

    ResultValueBase(Type, T const &value)
        : ResultBase(Ok)
    {
        new (&m_value) T(value);
    }

    auto operator=(ResultValueBase const &other) -> ResultValueBase &
    {
        if (m_type == ResultBase::Ok)
            m_value.~T();
        ResultBase::operator=(other);
        if (m_type == ResultBase::Ok)
            new (&m_value) T(other.m_value);
        return *this;
    }

    ~ResultValueBase() override
    {
        if (m_type == Ok)
            m_value.~T();
    }

    union {
        T m_value;
    };
};

template <>
class ResultValueBase<void> : public ResultBase
{
  protected:
    using ResultBase::ResultBase;
};

template <typename T = void>
class BasicResult : public ResultValueBase<T>
{
  public:
    template <typename U>
    explicit BasicResult(BasicResult<U> const &other)
        : ResultValueBase<T>(other.type()), m_errorMessage(other.errorMessage())
    {
        assert(type() != ResultBase::Ok);
    }

    template <typename U>
    static auto ok(U const &value) -> BasicResult
    {
        return {ResultBase::Ok, value};
    }
    static auto ok() -> BasicResult { return {ResultBase::Ok}; }
    static auto logicError(std::string const &message) -> BasicResult { return {ResultBase::LogicError, message}; }
    static auto runtimeError(std::string const &message) -> BasicResult { return {ResultBase::RuntimeError, message}; }

    explicit operator bool() const { return m_type == ResultBase::Ok; }
    auto type() const -> ResultBase::Type { return m_type; }
    auto errorMessage() const -> std::string { return m_errorMessage; }

  protected:
    void enforceOk() const override
    {

        // Errors shouldn't reach this point, but if they do
        // the actual error message will be in m_errorMessage
        assert(m_type != ResultBase::LogicError);
        assert(m_type != ResultBase::RuntimeError);
        if (m_type != ResultBase::Ok)
            std::abort();
    }

    std::string m_errorMessage; // Only populated if resultType is an error

    BasicResult(ResultBase::Type type, std::string const &message)
        : ResultValueBase<T>(type), m_errorMessage(message)
    {
        assert(m_type != ResultBase::Ok);
    }

    using ResultValueBase<T>::ResultValueBase;
    using ResultBase::m_type;
};

enum class ParseResultType
{
    Matched,
    NoMatch,
    ShortCircuitAll,
    ShortCircuitSame
};

class ParseState
{
  public:
    ParseState(ParseResultType type, TokenStream const &remainingTokens)
        : m_type(type), m_remainingTokens(remainingTokens)
    {
    }

    auto type() const -> ParseResultType { return m_type; }
    auto remainingTokens() const -> TokenStream { return m_remainingTokens; }

  private:
    ParseResultType m_type;
    TokenStream m_remainingTokens;
};

using Result = BasicResult<void>;
using ParserResult = BasicResult<ParseResultType>;
using InternalParseResult = BasicResult<ParseState>;

struct HelpColumns
{
    std::string left;
    std::string right;
};

template <typename T>
inline auto convertInto(std::string const &source, T &target) -> ParserResult
{
    std::stringstream ss;
    ss << source;
    ss >> target;
    if (ss.fail())
        return ParserResult::runtimeError("Unable to convert '" + source + "' to destination type");
    else
        return ParserResult::ok(ParseResultType::Matched);
}
inline auto convertInto(std::string const &source, std::string &target) -> ParserResult
{
    target = source;
    return ParserResult::ok(ParseResultType::Matched);
}
inline auto convertInto(std::string const &source, bool &target) -> ParserResult
{
    std::string srcLC = source;
    std::transform(srcLC.begin(), srcLC.end(), srcLC.begin(), [](char c) { return static_cast<char>(::tolower(c)); });
    if (srcLC == "y" || srcLC == "1" || srcLC == "true" || srcLC == "yes" || srcLC == "on")
        target = true;
    else if (srcLC == "n" || srcLC == "0" || srcLC == "false" || srcLC == "no" || srcLC == "off")
        target = false;
    else
        return ParserResult::runtimeError("Expected a boolean value but did not recognise: '" + source + "'");
    return ParserResult::ok(ParseResultType::Matched);
}
#ifdef CLARA_CONFIG_OPTIONAL_TYPE
template <typename T>
inline auto convertInto(std::string const &source, CLARA_CONFIG_OPTIONAL_TYPE<T> &target) -> ParserResult
{
    T temp;
    auto result = convertInto(source, temp);
    if (result)
        target = std::move(temp);
    return result;
}
#endif // CLARA_CONFIG_OPTIONAL_TYPE

struct NonCopyable
{
    NonCopyable() = default;
    NonCopyable(NonCopyable const &) = delete;
    NonCopyable(NonCopyable &&) = delete;
    NonCopyable &operator=(NonCopyable const &) = delete;
    NonCopyable &operator=(NonCopyable &&) = delete;
};

struct BoundRef : NonCopyable
{
    virtual ~BoundRef() = default;
    virtual auto isContainer() const -> bool { return false; }
    virtual auto isFlag() const -> bool { return false; }
};
struct BoundValueRefBase : BoundRef
{
    virtual auto setValue(std::string const &arg) -> ParserResult = 0;
};
struct BoundFlagRefBase : BoundRef
{
    virtual auto setFlag(bool flag) -> ParserResult = 0;
    virtual auto isFlag() const -> bool { return true; }
};

template <typename T>
struct BoundValueRef : BoundValueRefBase
{
    T &m_ref;

    explicit BoundValueRef(T &ref)
        : m_ref(ref) {}

    auto setValue(std::string const &arg) -> ParserResult override
    {
        return convertInto(arg, m_ref);
    }
};

template <typename T>
struct BoundValueRef<std::vector<T>> : BoundValueRefBase
{
    std::vector<T> &m_ref;

    explicit BoundValueRef(std::vector<T> &ref)
        : m_ref(ref) {}

    auto isContainer() const -> bool override { return true; }

    auto setValue(std::string const &arg) -> ParserResult override
    {
        T temp;
        auto result = convertInto(arg, temp);
        if (result)
            m_ref.push_back(temp);
        return result;
    }
};

struct BoundFlagRef : BoundFlagRefBase
{
    bool &m_ref;

    explicit BoundFlagRef(bool &ref)
        : m_ref(ref) {}

    auto setFlag(bool flag) -> ParserResult override
    {
        m_ref = flag;
        return ParserResult::ok(ParseResultType::Matched);
    }
};

template <typename ReturnType>
struct LambdaInvoker
{
    static_assert(std::is_same<ReturnType, ParserResult>::value, "Lambda must return void or clara::ParserResult");

    template <typename L, typename ArgType>
    static auto invoke(L const &lambda, ArgType const &arg) -> ParserResult
    {
        return lambda(arg);
    }
};

template <>
struct LambdaInvoker<void>
{
    template <typename L, typename ArgType>
    static auto invoke(L const &lambda, ArgType const &arg) -> ParserResult
    {
        lambda(arg);
        return ParserResult::ok(ParseResultType::Matched);
    }
};

template <typename ArgType, typename L>
inline auto invokeLambda(L const &lambda, std::string const &arg) -> ParserResult
{
    ArgType temp{};
    auto result = convertInto(arg, temp);
    return !result ? result : LambdaInvoker<typename UnaryLambdaTraits<L>::ReturnType>::invoke(lambda, temp);
}

template <typename L>
struct BoundLambda : BoundValueRefBase
{
    L m_lambda;

    static_assert(UnaryLambdaTraits<L>::isValid, "Supplied lambda must take exactly one argument");
    explicit BoundLambda(L const &lambda)
        : m_lambda(lambda) {}

    auto setValue(std::string const &arg) -> ParserResult override
    {
        return invokeLambda<typename UnaryLambdaTraits<L>::ArgType>(m_lambda, arg);
    }
};

template <typename L>
struct BoundFlagLambda : BoundFlagRefBase
{
    L m_lambda;

    static_assert(UnaryLambdaTraits<L>::isValid, "Supplied lambda must take exactly one argument");
    static_assert(std::is_same<typename UnaryLambdaTraits<L>::ArgType, bool>::value, "flags must be boolean");

    explicit BoundFlagLambda(L const &lambda)
        : m_lambda(lambda) {}

    auto setFlag(bool flag) -> ParserResult override
    {
        return LambdaInvoker<typename UnaryLambdaTraits<L>::ReturnType>::invoke(m_lambda, flag);
    }
};

enum class Optionality
{
    Optional,
    Required
};

struct Parser;

class ParserBase
{
  public:
    virtual ~ParserBase() = default;
    virtual auto validate() const -> Result { return Result::ok(); }
    virtual auto parse(std::string const &exeName, TokenStream const &tokens) const -> InternalParseResult = 0;
    virtual auto cardinality() const -> size_t { return 1; }

    auto parse(Args const &args) const -> InternalParseResult
    {
        return parse(args.exeName(), TokenStream(args));
    }
};

template <typename DerivedT>
class ComposableParserImpl : public ParserBase
{
  public:
    template <typename T>
    auto operator|(T const &other) const -> Parser;

    template <typename T>
    auto operator+(T const &other) const -> Parser;
};

// Common code and state for Args and Opts
template <typename DerivedT>
class ParserRefImpl : public ComposableParserImpl<DerivedT>
{
  protected:
    Optionality m_optionality = Optionality::Optional;
    std::shared_ptr<BoundRef> m_ref;
    std::string m_hint;
    std::string m_description;

    explicit ParserRefImpl(std::shared_ptr<BoundRef> const &ref)
        : m_ref(ref) {}

  public:
    template <typename T>
    ParserRefImpl(T &ref, std::string const &hint)
        : m_ref(std::make_shared<BoundValueRef<T>>(ref)), m_hint(hint)
    {
    }

    template <typename LambdaT>
    ParserRefImpl(LambdaT const &ref, std::string const &hint)
        : m_ref(std::make_shared<BoundLambda<LambdaT>>(ref)), m_hint(hint)
    {
    }

    auto operator()(std::string const &description) -> DerivedT &
    {
        m_description = description;
        return static_cast<DerivedT &>(*this);
    }

    auto optional() -> DerivedT &
    {
        m_optionality = Optionality::Optional;
        return static_cast<DerivedT &>(*this);
    };

    auto required() -> DerivedT &
    {
        m_optionality = Optionality::Required;
        return static_cast<DerivedT &>(*this);
    };

    auto isOptional() const -> bool
    {
        return m_optionality == Optionality::Optional;
    }

    auto cardinality() const -> size_t override
    {
        if (m_ref->isContainer())
            return 0;
        else
            return 1;
    }

    auto hint() const -> std::string { return m_hint; }
};

class ExeName : public ComposableParserImpl<ExeName>
{
    std::shared_ptr<std::string> m_name;
    std::shared_ptr<BoundValueRefBase> m_ref;

    template <typename LambdaT>
    static auto makeRef(LambdaT const &lambda) -> std::shared_ptr<BoundValueRefBase>
    {
        return std::make_shared<BoundLambda<LambdaT>>(lambda);
    }

  public:
    ExeName()
        : m_name(std::make_shared<std::string>("<executable>")) {}

    explicit ExeName(std::string &ref)
        : ExeName()
    {
        m_ref = std::make_shared<BoundValueRef<std::string>>(ref);
    }

    template <typename LambdaT>
    explicit ExeName(LambdaT const &lambda)
        : ExeName()
    {
        m_ref = std::make_shared<BoundLambda<LambdaT>>(lambda);
    }

    // The exe name is not parsed out of the normal tokens, but is handled specially
    auto parse(std::string const &, TokenStream const &tokens) const -> InternalParseResult override
    {
        return InternalParseResult::ok(ParseState(ParseResultType::NoMatch, tokens));
    }

    auto name() const -> std::string { return *m_name; }
    auto set(std::string const &newName) -> ParserResult
    {

        auto lastSlash = newName.find_last_of("\\/");
        auto filename = (lastSlash == std::string::npos) ? newName : newName.substr(lastSlash + 1);

        *m_name = filename;
        if (m_ref)
            return m_ref->setValue(filename);
        else
            return ParserResult::ok(ParseResultType::Matched);
    }
};

class Arg : public ParserRefImpl<Arg>
{
  public:
    using ParserRefImpl::ParserRefImpl;

    auto parse(std::string const &, TokenStream const &tokens) const -> InternalParseResult override
    {
        auto validationResult = validate();
        if (!validationResult)
            return InternalParseResult(validationResult);

        auto remainingTokens = tokens;
        auto const &token = *remainingTokens;
        if (token.type != TokenType::Argument)
            return InternalParseResult::ok(ParseState(ParseResultType::NoMatch, remainingTokens));

        assert(!m_ref->isFlag());
        auto valueRef = static_cast<detail::BoundValueRefBase *>(m_ref.get());

        auto result = valueRef->setValue(remainingTokens->token);
        if (!result)
            return InternalParseResult(result);
        else
            return InternalParseResult::ok(ParseState(ParseResultType::Matched, ++remainingTokens));
    }
};

inline auto normaliseOpt(std::string const &optName) -> std::string
{
#ifdef CATCH_PLATFORM_WINDOWS
    if (optName[0] == '/')
        return "-" + optName.substr(1);
    else
#endif
        return optName;
}

class Opt : public ParserRefImpl<Opt>
{
  protected:
    std::vector<std::string> m_optNames;

  public:
    template <typename LambdaT>
    explicit Opt(LambdaT const &ref)
        : ParserRefImpl(std::make_shared<BoundFlagLambda<LambdaT>>(ref))
    {
    }

    explicit Opt(bool &ref)
        : ParserRefImpl(std::make_shared<BoundFlagRef>(ref)) {}

    template <typename LambdaT>
    Opt(LambdaT const &ref, std::string const &hint)
        : ParserRefImpl(ref, hint)
    {
    }

    template <typename T>
    Opt(T &ref, std::string const &hint)
        : ParserRefImpl(ref, hint)
    {
    }

    auto operator[](std::string const &optName) -> Opt &
    {
        m_optNames.push_back(optName);
        return *this;
    }

    auto getHelpColumns() const -> std::vector<HelpColumns>
    {
        std::ostringstream oss;
        bool first = true;
        for (auto const &opt : m_optNames)
        {
            if (first)
                first = false;
            else
                oss << ", ";
            oss << opt;
        }
        if (!m_hint.empty())
            oss << " <" << m_hint << ">";
        return {{oss.str(), m_description}};
    }

    auto isMatch(std::string const &optToken) const -> bool
    {
        auto normalisedToken = normaliseOpt(optToken);
        for (auto const &name : m_optNames)
        {
            if (normaliseOpt(name) == normalisedToken)
                return true;
        }
        return false;
    }

    using ParserBase::parse;

    auto parse(std::string const &, TokenStream const &tokens) const -> InternalParseResult override
    {
        auto validationResult = validate();
        if (!validationResult)
            return InternalParseResult(validationResult);

        auto remainingTokens = tokens;
        if (remainingTokens && remainingTokens->type == TokenType::Option)
        {
            auto const &token = *remainingTokens;
            if (isMatch(token.token))
            {
                if (m_ref->isFlag())
                {
                    auto flagRef = static_cast<detail::BoundFlagRefBase *>(m_ref.get());
                    auto result = flagRef->setFlag(true);
                    if (!result)
                        return InternalParseResult(result);
                    if (result.value() == ParseResultType::ShortCircuitAll)
                        return InternalParseResult::ok(ParseState(result.value(), remainingTokens));
                }
                else
                {
                    auto valueRef = static_cast<detail::BoundValueRefBase *>(m_ref.get());
                    ++remainingTokens;
                    if (!remainingTokens)
                        return InternalParseResult::runtimeError("Expected argument following " + token.token);
                    auto const &argToken = *remainingTokens;
                    if (argToken.type != TokenType::Argument)
                        return InternalParseResult::runtimeError("Expected argument following " + token.token);
                    auto result = valueRef->setValue(argToken.token);
                    if (!result)
                        return InternalParseResult(result);
                    if (result.value() == ParseResultType::ShortCircuitAll)
                        return InternalParseResult::ok(ParseState(result.value(), remainingTokens));
                }
                return InternalParseResult::ok(ParseState(ParseResultType::Matched, ++remainingTokens));
            }
        }
        return InternalParseResult::ok(ParseState(ParseResultType::NoMatch, remainingTokens));
    }

    auto validate() const -> Result override
    {
        if (m_optNames.empty())
            return Result::logicError("No options supplied to Opt");
        for (auto const &name : m_optNames)
        {
            if (name.empty())
                return Result::logicError("Option name cannot be empty");
#ifdef CATCH_PLATFORM_WINDOWS
            if (name[0] != '-' && name[0] != '/')
                return Result::logicError("Option name must begin with '-' or '/'");
#else
            if (name[0] != '-')
                return Result::logicError("Option name must begin with '-'");
#endif
        }
        return ParserRefImpl::validate();
    }
};

struct Help : Opt
{
    Help(bool &showHelpFlag)
        : Opt([&](bool flag) {
            showHelpFlag = flag;
            return ParserResult::ok(ParseResultType::ShortCircuitAll);
        })
    {
        static_cast<Opt &> (*this)("display usage information")
            ["-?"]["-h"]["--help"]
                .optional();
    }
};

struct Parser : ParserBase
{

    mutable ExeName m_exeName;
    std::vector<Opt> m_options;
    std::vector<Arg> m_args;

    auto operator|=(ExeName const &exeName) -> Parser &
    {
        m_exeName = exeName;
        return *this;
    }

    auto operator|=(Arg const &arg) -> Parser &
    {
        m_args.push_back(arg);
        return *this;
    }

    auto operator|=(Opt const &opt) -> Parser &
    {
        m_options.push_back(opt);
        return *this;
    }

    auto operator|=(Parser const &other) -> Parser &
    {
        m_options.insert(m_options.end(), other.m_options.begin(), other.m_options.end());
        m_args.insert(m_args.end(), other.m_args.begin(), other.m_args.end());
        return *this;
    }

    template <typename T>
    auto operator|(T const &other) const -> Parser
    {
        return Parser(*this) |= other;
    }

    // Forward deprecated interface with '+' instead of '|'
    template <typename T>
    auto operator+=(T const &other) -> Parser &
    {
        return operator|=(other);
    }
    template <typename T>
    auto operator+(T const &other) const -> Parser
    {
        return operator|(other);
    }

    auto getHelpColumns() const -> std::vector<HelpColumns>
    {
        std::vector<HelpColumns> cols;
        for (auto const &o : m_options)
        {
            auto childCols = o.getHelpColumns();
            cols.insert(cols.end(), childCols.begin(), childCols.end());
        }
        return cols;
    }

    void writeToStream(std::ostream &os) const
    {
        if (!m_exeName.name().empty())
        {
            os << "usage:\n"
               << "  " << m_exeName.name() << " ";
            bool required = true, first = true;
            for (auto const &arg : m_args)
            {
                if (first)
                    first = false;
                else
                    os << " ";
                if (arg.isOptional() && required)
                {
                    os << "[";
                    required = false;
                }
                os << "<" << arg.hint() << ">";
                if (arg.cardinality() == 0)
                    os << " ... ";
            }
            if (!required)
                os << "]";
            if (!m_options.empty())
                os << " options";
            os << "\n\nwhere options are:" << std::endl;
        }

        auto rows = getHelpColumns();
        size_t consoleWidth = CATCH_CLARA_CONFIG_CONSOLE_WIDTH;
        size_t optWidth = 0;
        for (auto const &cols : rows)
            optWidth = (std::max)(optWidth, cols.left.size() + 2);

        optWidth = (std::min)(optWidth, consoleWidth / 2);

        for (auto const &cols : rows)
        {
            auto row = TextFlow::Column(cols.left).width(optWidth).indent(2) + TextFlow::Spacer(4) + TextFlow::Column(cols.right).width(consoleWidth - 7 - optWidth);
            os << row << std::endl;
        }
    }

    friend auto operator<<(std::ostream &os, Parser const &parser) -> std::ostream &
    {
        parser.writeToStream(os);
        return os;
    }

    auto validate() const -> Result override
    {
        for (auto const &opt : m_options)
        {
            auto result = opt.validate();
            if (!result)
                return result;
        }
        for (auto const &arg : m_args)
        {
            auto result = arg.validate();
            if (!result)
                return result;
        }
        return Result::ok();
    }

    using ParserBase::parse;

    auto parse(std::string const &exeName, TokenStream const &tokens) const -> InternalParseResult override
    {

        struct ParserInfo
        {
            ParserBase const *parser = nullptr;
            size_t count = 0;
        };
        const size_t totalParsers = m_options.size() + m_args.size();
        assert(totalParsers < 512);
        // ParserInfo parseInfos[totalParsers]; // <-- this is what we really want to do
        ParserInfo parseInfos[512];

        {
            size_t i = 0;
            for (auto const &opt : m_options) parseInfos[i++].parser = &opt;
            for (auto const &arg : m_args) parseInfos[i++].parser = &arg;
        }

        m_exeName.set(exeName);

        auto result = InternalParseResult::ok(ParseState(ParseResultType::NoMatch, tokens));
        while (result.value().remainingTokens())
        {
            bool tokenParsed = false;

            for (size_t i = 0; i < totalParsers; ++i)
            {
                auto &parseInfo = parseInfos[i];
                if (parseInfo.parser->cardinality() == 0 || parseInfo.count < parseInfo.parser->cardinality())
                {
                    result = parseInfo.parser->parse(exeName, result.value().remainingTokens());
                    if (!result)
                        return result;
                    if (result.value().type() != ParseResultType::NoMatch)
                    {
                        tokenParsed = true;
                        ++parseInfo.count;
                        break;
                    }
                }
            }

            if (result.value().type() == ParseResultType::ShortCircuitAll)
                return result;
            if (!tokenParsed)
                return InternalParseResult::runtimeError("Unrecognised token: " + result.value().remainingTokens()->token);
        }
        // !TBD Check missing required options
        return result;
    }
};

template <typename DerivedT>
template <typename T>
auto ComposableParserImpl<DerivedT>::operator|(T const &other) const -> Parser
{
    return Parser() | static_cast<DerivedT const &>(*this) | other;
}
} // namespace detail

// A Combined parser
using detail::Parser;

// A parser for options
using detail::Opt;

// A parser for arguments
using detail::Arg;

// Wrapper for argc, argv from main()
using detail::Args;

// Specifies the name of the executable
using detail::ExeName;

// Convenience wrapper for option parser that specifies the help option
using detail::Help;

// enum of result types from a parse
using detail::ParseResultType;

// Result type for parser operation
using detail::ParserResult;

} // namespace clara
} // namespace Catch

// end clara.hpp
#ifdef __clang__
#pragma clang diagnostic pop
#endif

// Restore Clara's value for console width, if present
#ifdef CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH
#define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH
#undef CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH
#endif

// end catch_clara.h
namespace Catch
{

clara::Parser makeCommandLineParser(ConfigData &config);

} // end namespace Catch

// end catch_commandline.h
#include <ctime>
#include <fstream>

namespace Catch
{

clara::Parser makeCommandLineParser(ConfigData &config)
{

    using namespace clara;

    auto const setWarning = [&](std::string const &warning) {
        auto warningSet = [&]() {
            if (warning == "NoAssertions")
                return WarnAbout::NoAssertions;

            if (warning == "NoTests")
                return WarnAbout::NoTests;

            return WarnAbout::Nothing;
        }();

        if (warningSet == WarnAbout::Nothing)
            return ParserResult::runtimeError("Unrecognised warning: '" + warning + "'");
        config.warnings = static_cast<WarnAbout::What>(config.warnings | warningSet);
        return ParserResult::ok(ParseResultType::Matched);
    };
    auto const loadTestNamesFromFile = [&](std::string const &filename) {
        std::ifstream f(filename.c_str());
        if (!f.is_open())
            return ParserResult::runtimeError("Unable to load input file: '" + filename + "'");

        std::string line;
        while (std::getline(f, line))
        {
            line = trim(line);
            if (!line.empty() && !startsWith(line, '#'))
            {
                if (!startsWith(line, '"'))
                    line = '"' + line + '"';
                config.testsOrTags.push_back(line + ',');
            }
        }
        return ParserResult::ok(ParseResultType::Matched);
    };
    auto const setTestOrder = [&](std::string const &order) {
        if (startsWith("declared", order))
            config.runOrder = RunTests::InDeclarationOrder;
        else if (startsWith("lexical", order))
            config.runOrder = RunTests::InLexicographicalOrder;
        else if (startsWith("random", order))
            config.runOrder = RunTests::InRandomOrder;
        else
            return clara::ParserResult::runtimeError("Unrecognised ordering: '" + order + "'");
        return ParserResult::ok(ParseResultType::Matched);
    };
    auto const setRngSeed = [&](std::string const &seed) {
        if (seed != "time")
            return clara::detail::convertInto(seed, config.rngSeed);
        config.rngSeed = static_cast<unsigned int>(std::time(nullptr));
        return ParserResult::ok(ParseResultType::Matched);
    };
    auto const setColourUsage = [&](std::string const &useColour) {
        auto mode = toLower(useColour);

        if (mode == "yes")
            config.useColour = UseColour::Yes;
        else if (mode == "no")
            config.useColour = UseColour::No;
        else if (mode == "auto")
            config.useColour = UseColour::Auto;
        else
            return ParserResult::runtimeError("colour mode must be one of: auto, yes or no. '" + useColour + "' not recognised");
        return ParserResult::ok(ParseResultType::Matched);
    };
    auto const setWaitForKeypress = [&](std::string const &keypress) {
        auto keypressLc = toLower(keypress);
        if (keypressLc == "start")
            config.waitForKeypress = WaitForKeypress::BeforeStart;
        else if (keypressLc == "exit")
            config.waitForKeypress = WaitForKeypress::BeforeExit;
        else if (keypressLc == "both")
            config.waitForKeypress = WaitForKeypress::BeforeStartAndExit;
        else
            return ParserResult::runtimeError("keypress argument must be one of: start, exit or both. '" + keypress + "' not recognised");
        return ParserResult::ok(ParseResultType::Matched);
    };
    auto const setVerbosity = [&](std::string const &verbosity) {
        auto lcVerbosity = toLower(verbosity);
        if (lcVerbosity == "quiet")
            config.verbosity = Verbosity::Quiet;
        else if (lcVerbosity == "normal")
            config.verbosity = Verbosity::Normal;
        else if (lcVerbosity == "high")
            config.verbosity = Verbosity::High;
        else
            return ParserResult::runtimeError("Unrecognised verbosity, '" + verbosity + "'");
        return ParserResult::ok(ParseResultType::Matched);
    };

    auto cli
        = ExeName(config.processName)
          | Help(config.showHelp)
          | Opt(config.listTests)
              ["-l"]["--list-tests"]("list all/matching test cases")
          | Opt(config.listTags)
              ["-t"]["--list-tags"]("list all/matching tags")
          | Opt(config.showSuccessfulTests)
              ["-s"]["--success"]("include successful tests in output")
          | Opt(config.shouldDebugBreak)
              ["-b"]["--break"]("break into debugger on failure")
          | Opt(config.noThrow)
              ["-e"]["--nothrow"]("skip exception tests")
          | Opt(config.showInvisibles)
              ["-i"]["--invisibles"]("show invisibles (tabs, newlines)")
          | Opt(config.outputFilename, "filename")
              ["-o"]["--out"]("output filename")
          | Opt(config.reporterName, "name")
              ["-r"]["--reporter"]("reporter to use (defaults to console)")
          | Opt(config.name, "name")
              ["-n"]["--name"]("suite name")
          | Opt([&](bool) { config.abortAfter = 1; })
              ["-a"]["--abort"]("abort at first failure")
          | Opt([&](int x) { config.abortAfter = x; }, "no. failures")
              ["-x"]["--abortx"]("abort after x failures")
          | Opt(setWarning, "warning name")
              ["-w"]["--warn"]("enable warnings")
          | Opt([&](bool flag) { config.showDurations = flag ? ShowDurations::Always : ShowDurations::Never; }, "yes|no")
              ["-d"]["--durations"]("show test durations")
          | Opt(loadTestNamesFromFile, "filename")
              ["-f"]["--input-file"]("load test names to run from a file")
          | Opt(config.filenamesAsTags)
              ["-#"]["--filenames-as-tags"]("adds a tag for the filename")
          | Opt(config.sectionsToRun, "section name")
              ["-c"]["--section"]("specify section to run")
          | Opt(setVerbosity, "quiet|normal|high")
              ["-v"]["--verbosity"]("set output verbosity")
          | Opt(config.listTestNamesOnly)
              ["--list-test-names-only"]("list all/matching test cases names only")
          | Opt(config.listReporters)
              ["--list-reporters"]("list all reporters")
          | Opt(setTestOrder, "decl|lex|rand")
              ["--order"]("test case order (defaults to decl)")
          | Opt(setRngSeed, "'time'|number")
              ["--rng-seed"]("set a specific seed for random numbers")
          | Opt(setColourUsage, "yes|no")
              ["--use-colour"]("should output be colourised")
          | Opt(config.libIdentify)
              ["--libidentify"]("report name and version according to libidentify standard")
          | Opt(setWaitForKeypress, "start|exit|both")
              ["--wait-for-keypress"]("waits for a keypress before exiting")
          | Opt(config.benchmarkResolutionMultiple, "multiplier")
              ["--benchmark-resolution-multiple"]("multiple of clock resolution to run benchmarks")

          | Arg(config.testsOrTags, "test name|pattern|tags")("which test or tests to use");

    return cli;
}

} // end namespace Catch
// end catch_commandline.cpp
// start catch_common.cpp

#include <cstring>
#include <ostream>

namespace Catch
{

bool SourceLineInfo::empty() const noexcept
{
    return file[0] == '\0';
}
bool SourceLineInfo::operator==(SourceLineInfo const &other) const noexcept
{
    return line == other.line && (file == other.file || std::strcmp(file, other.file) == 0);
}
bool SourceLineInfo::operator<(SourceLineInfo const &other) const noexcept
{
    return line < other.line || (line == other.line && (std::strcmp(file, other.file) < 0));
}

std::ostream &operator<<(std::ostream &os, SourceLineInfo const &info)
{
#ifndef __GNUG__
    os << info.file << '(' << info.line << ')';
#else
    os << info.file << ':' << info.line;
#endif
    return os;
}

std::string StreamEndStop::operator+() const
{
    return std::string();
}

NonCopyable::NonCopyable() = default;
NonCopyable::~NonCopyable() = default;

} // namespace Catch
// end catch_common.cpp
// start catch_config.cpp

// start catch_enforce.h

#include <stdexcept>

#define CATCH_PREPARE_EXCEPTION(type, msg) \
    type((Catch::ReusableStringStream() << msg).str())
#define CATCH_INTERNAL_ERROR(msg) \
    throw CATCH_PREPARE_EXCEPTION(std::logic_error, CATCH_INTERNAL_LINEINFO << ": Internal Catch error: " << msg);
#define CATCH_ERROR(msg) \
    throw CATCH_PREPARE_EXCEPTION(std::domain_error, msg)
#define CATCH_ENFORCE(condition, msg)       \
    do                                      \
    {                                       \
        if (!(condition)) CATCH_ERROR(msg); \
    } while (false)

// end catch_enforce.h
namespace Catch
{

Config::Config(ConfigData const &data)
    : m_data(data), m_stream(openStream())
{
    TestSpecParser parser(ITagAliasRegistry::get());
    if (data.testsOrTags.empty())
    {
        parser.parse("~[.]"); // All not hidden tests
    }
    else
    {
        m_hasTestFilters = true;
        for (auto const &testOrTags : data.testsOrTags)
            parser.parse(testOrTags);
    }
    m_testSpec = parser.testSpec();
}

std::string const &Config::getFilename() const
{
    return m_data.outputFilename;
}

bool Config::listTests() const { return m_data.listTests; }
bool Config::listTestNamesOnly() const { return m_data.listTestNamesOnly; }
bool Config::listTags() const { return m_data.listTags; }
bool Config::listReporters() const { return m_data.listReporters; }

std::string Config::getProcessName() const { return m_data.processName; }
std::string const &Config::getReporterName() const { return m_data.reporterName; }

std::vector<std::string> const &Config::getTestsOrTags() const { return m_data.testsOrTags; }
std::vector<std::string> const &Config::getSectionsToRun() const { return m_data.sectionsToRun; }

TestSpec const &Config::testSpec() const { return m_testSpec; }
bool Config::hasTestFilters() const { return m_hasTestFilters; }

bool Config::showHelp() const { return m_data.showHelp; }

// IConfig interface
bool Config::allowThrows() const { return !m_data.noThrow; }
std::ostream &Config::stream() const { return m_stream->stream(); }
std::string Config::name() const { return m_data.name.empty() ? m_data.processName : m_data.name; }
bool Config::includeSuccessfulResults() const { return m_data.showSuccessfulTests; }
bool Config::warnAboutMissingAssertions() const { return !!(m_data.warnings & WarnAbout::NoAssertions); }
bool Config::warnAboutNoTests() const { return !!(m_data.warnings & WarnAbout::NoTests); }
ShowDurations::OrNot Config::showDurations() const { return m_data.showDurations; }
RunTests::InWhatOrder Config::runOrder() const { return m_data.runOrder; }
unsigned int Config::rngSeed() const { return m_data.rngSeed; }
int Config::benchmarkResolutionMultiple() const { return m_data.benchmarkResolutionMultiple; }
UseColour::YesOrNo Config::useColour() const { return m_data.useColour; }
bool Config::shouldDebugBreak() const { return m_data.shouldDebugBreak; }
int Config::abortAfter() const { return m_data.abortAfter; }
bool Config::showInvisibles() const { return m_data.showInvisibles; }
Verbosity Config::verbosity() const { return m_data.verbosity; }

IStream const *Config::openStream()
{
    return Catch::makeStream(m_data.outputFilename);
}

} // end namespace Catch
// end catch_config.cpp
// start catch_console_colour.cpp

#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wexit-time-destructors"
#endif

// start catch_errno_guard.h

namespace Catch
{

class ErrnoGuard
{
  public:
    ErrnoGuard();
    ~ErrnoGuard();

  private:
    int m_oldErrno;
};

} // namespace Catch

// end catch_errno_guard.h
#include <sstream>

namespace Catch
{
namespace
{

struct IColourImpl
{
    virtual ~IColourImpl() = default;
    virtual void use(Colour::Code _colourCode) = 0;
};

struct NoColourImpl : IColourImpl
{
    void use(Colour::Code) {}

    static IColourImpl *instance()
    {
        static NoColourImpl s_instance;
        return &s_instance;
    }
};

} // namespace
} // namespace Catch

#if !defined(CATCH_CONFIG_COLOUR_NONE) && !defined(CATCH_CONFIG_COLOUR_WINDOWS) && !defined(CATCH_CONFIG_COLOUR_ANSI)
#ifdef CATCH_PLATFORM_WINDOWS
#define CATCH_CONFIG_COLOUR_WINDOWS
#else
#define CATCH_CONFIG_COLOUR_ANSI
#endif
#endif

#if defined(CATCH_CONFIG_COLOUR_WINDOWS) /////////////////////////////////////////

namespace Catch
{
namespace
{

class Win32ColourImpl : public IColourImpl
{
  public:
    Win32ColourImpl()
        : stdoutHandle(GetStdHandle(STD_OUTPUT_HANDLE))
    {
        CONSOLE_SCREEN_BUFFER_INFO csbiInfo;
        GetConsoleScreenBufferInfo(stdoutHandle, &csbiInfo);
        originalForegroundAttributes = csbiInfo.wAttributes & ~(BACKGROUND_GREEN | BACKGROUND_RED | BACKGROUND_BLUE | BACKGROUND_INTENSITY);
        originalBackgroundAttributes = csbiInfo.wAttributes & ~(FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE | FOREGROUND_INTENSITY);
    }

    virtual void use(Colour::Code _colourCode) override
    {
        switch (_colourCode)
        {
            case Colour::None: return setTextAttribute(originalForegroundAttributes);
            case Colour::White: return setTextAttribute(FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE);
            case Colour::Red: return setTextAttribute(FOREGROUND_RED);
            case Colour::Green: return setTextAttribute(FOREGROUND_GREEN);
            case Colour::Blue: return setTextAttribute(FOREGROUND_BLUE);
            case Colour::Cyan: return setTextAttribute(FOREGROUND_BLUE | FOREGROUND_GREEN);
            case Colour::Yellow: return setTextAttribute(FOREGROUND_RED | FOREGROUND_GREEN);
            case Colour::Grey: return setTextAttribute(0);

            case Colour::LightGrey: return setTextAttribute(FOREGROUND_INTENSITY);
            case Colour::BrightRed: return setTextAttribute(FOREGROUND_INTENSITY | FOREGROUND_RED);
            case Colour::BrightGreen: return setTextAttribute(FOREGROUND_INTENSITY | FOREGROUND_GREEN);
            case Colour::BrightWhite: return setTextAttribute(FOREGROUND_INTENSITY | FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE);
            case Colour::BrightYellow: return setTextAttribute(FOREGROUND_INTENSITY | FOREGROUND_RED | FOREGROUND_GREEN);

            case Colour::Bright: CATCH_INTERNAL_ERROR("not a colour");

            default:
                CATCH_ERROR("Unknown colour requested");
        }
    }

  private:
    void setTextAttribute(WORD _textAttribute)
    {
        SetConsoleTextAttribute(stdoutHandle, _textAttribute | originalBackgroundAttributes);
    }
    HANDLE stdoutHandle;
    WORD originalForegroundAttributes;
    WORD originalBackgroundAttributes;
};

IColourImpl *platformColourInstance()
{
    static Win32ColourImpl s_instance;

    IConfigPtr config = getCurrentContext().getConfig();
    UseColour::YesOrNo colourMode = config ? config->useColour() : UseColour::Auto;
    if (colourMode == UseColour::Auto)
        colourMode = UseColour::Yes;
    return colourMode == UseColour::Yes ? &s_instance : NoColourImpl::instance();
}

} // namespace
} // end namespace Catch

#elif defined(CATCH_CONFIG_COLOUR_ANSI) //////////////////////////////////////

#include <unistd.h>

namespace Catch
{
namespace
{

// use POSIX/ ANSI console terminal codes
// Thanks to Adam Strzelecki for original contribution
// (http://github.com/nanoant)
// https://github.com/philsquared/Catch/pull/131
class PosixColourImpl : public IColourImpl
{
  public:
    virtual void use(Colour::Code _colourCode) override
    {
        switch (_colourCode)
        {
            case Colour::None:
            case Colour::White: return setColour("[0m");
            case Colour::Red: return setColour("[0;31m");
            case Colour::Green: return setColour("[0;32m");
            case Colour::Blue: return setColour("[0;34m");
            case Colour::Cyan: return setColour("[0;36m");
            case Colour::Yellow: return setColour("[0;33m");
            case Colour::Grey: return setColour("[1;30m");

            case Colour::LightGrey: return setColour("[0;37m");
            case Colour::BrightRed: return setColour("[1;31m");
            case Colour::BrightGreen: return setColour("[1;32m");
            case Colour::BrightWhite: return setColour("[1;37m");
            case Colour::BrightYellow: return setColour("[1;33m");

            case Colour::Bright: CATCH_INTERNAL_ERROR("not a colour");
            default: CATCH_INTERNAL_ERROR("Unknown colour requested");
        }
    }
    static IColourImpl *instance()
    {
        static PosixColourImpl s_instance;
        return &s_instance;
    }

  private:
    void setColour(const char *_escapeCode)
    {
        Catch::cout() << '\033' << _escapeCode;
    }
};

bool useColourOnPlatform()
{
    return
#ifdef CATCH_PLATFORM_MAC
        !isDebuggerActive() &&
#endif
#if !(defined(__DJGPP__) && defined(__STRICT_ANSI__))
        isatty(STDOUT_FILENO)
#else
        false
#endif
            ;
}
IColourImpl *platformColourInstance()
{
    ErrnoGuard guard;
    IConfigPtr config = getCurrentContext().getConfig();
    UseColour::YesOrNo colourMode = config ? config->useColour() : UseColour::Auto;
    if (colourMode == UseColour::Auto)
        colourMode = useColourOnPlatform() ? UseColour::Yes : UseColour::No;
    return colourMode == UseColour::Yes ? PosixColourImpl::instance() : NoColourImpl::instance();
}

} // namespace
} // end namespace Catch

#else // not Windows or ANSI ///////////////////////////////////////////////

namespace Catch
{

static IColourImpl *platformColourInstance() { return NoColourImpl::instance(); }

} // end namespace Catch

#endif // Windows/ ANSI/ None

namespace Catch
{

Colour::Colour(Code _colourCode) { use(_colourCode); }
Colour::Colour(Colour &&rhs) noexcept
{
    m_moved = rhs.m_moved;
    rhs.m_moved = true;
}
Colour &Colour::operator=(Colour &&rhs) noexcept
{
    m_moved = rhs.m_moved;
    rhs.m_moved = true;
    return *this;
}

Colour::~Colour()
{
    if (!m_moved) use(None);
}

void Colour::use(Code _colourCode)
{
    static IColourImpl *impl = platformColourInstance();
    impl->use(_colourCode);
}

std::ostream &operator<<(std::ostream &os, Colour const &)
{
    return os;
}

} // end namespace Catch

#if defined(__clang__)
#pragma clang diagnostic pop
#endif

// end catch_console_colour.cpp
// start catch_context.cpp

namespace Catch
{

class Context : public IMutableContext, NonCopyable
{

  public: // IContext
    virtual IResultCapture *getResultCapture() override
    {
        return m_resultCapture;
    }
    virtual IRunner *getRunner() override
    {
        return m_runner;
    }

    virtual IConfigPtr const &getConfig() const override
    {
        return m_config;
    }

    virtual ~Context() override;

  public: // IMutableContext
    virtual void setResultCapture(IResultCapture *resultCapture) override
    {
        m_resultCapture = resultCapture;
    }
    virtual void setRunner(IRunner *runner) override
    {
        m_runner = runner;
    }
    virtual void setConfig(IConfigPtr const &config) override
    {
        m_config = config;
    }

    friend IMutableContext &getCurrentMutableContext();

  private:
    IConfigPtr m_config;
    IRunner *m_runner = nullptr;
    IResultCapture *m_resultCapture = nullptr;
};

IMutableContext *IMutableContext::currentContext = nullptr;

void IMutableContext::createContext()
{
    currentContext = new Context();
}

void cleanUpContext()
{
    delete IMutableContext::currentContext;
    IMutableContext::currentContext = nullptr;
}
IContext::~IContext() = default;
IMutableContext::~IMutableContext() = default;
Context::~Context() = default;
} // namespace Catch
// end catch_context.cpp
// start catch_debug_console.cpp

// start catch_debug_console.h

#include <string>

namespace Catch
{
void writeToDebugConsole(std::string const &text);
}

// end catch_debug_console.h
#ifdef CATCH_PLATFORM_WINDOWS

namespace Catch
{
void writeToDebugConsole(std::string const &text)
{
    ::OutputDebugStringA(text.c_str());
}
} // namespace Catch

#else

namespace Catch
{
void writeToDebugConsole(std::string const &text)
{
    // !TBD: Need a version for Mac/ XCode and other IDEs
    Catch::cout() << text;
}
} // namespace Catch

#endif // Platform
// end catch_debug_console.cpp
// start catch_debugger.cpp

#ifdef CATCH_PLATFORM_MAC

#include <assert.h>
#include <cstddef>
#include <ostream>
#include <stdbool.h>
#include <sys/sysctl.h>
#include <sys/types.h>
#include <unistd.h>

namespace Catch
{

// The following function is taken directly from the following technical note:
// http://developer.apple.com/library/mac/#qa/qa2004/qa1361.html

// Returns true if the current process is being debugged (either
// running under the debugger or has a debugger attached post facto).
bool isDebuggerActive()
{

    int mib[4];
    struct kinfo_proc info;
    std::size_t size;

    // Initialize the flags so that, if sysctl fails for some bizarre
    // reason, we get a predictable result.

    info.kp_proc.p_flag = 0;

    // Initialize mib, which tells sysctl the info we want, in this case
    // we're looking for information about a specific process ID.

    mib[0] = CTL_KERN;
    mib[1] = KERN_PROC;
    mib[2] = KERN_PROC_PID;
    mib[3] = getpid();

    // Call sysctl.

    size = sizeof(info);
    if (sysctl(mib, sizeof(mib) / sizeof(*mib), &info, &size, nullptr, 0) != 0)
    {
        Catch::cerr() << "\n** Call to sysctl failed - unable to determine if debugger is active **\n"
                      << std::endl;
        return false;
    }

    // We're being debugged if the P_TRACED flag is set.

    return ((info.kp_proc.p_flag & P_TRACED) != 0);
}
} // namespace Catch

#elif defined(CATCH_PLATFORM_LINUX)
#include <fstream>
#include <string>

namespace Catch
{
// The standard POSIX way of detecting a debugger is to attempt to
// ptrace() the process, but this needs to be done from a child and not
// this process itself to still allow attaching to this process later
// if wanted, so is rather heavy. Under Linux we have the PID of the
// "debugger" (which doesn't need to be gdb, of course, it could also
// be strace, for example) in /proc/$PID/status, so just get it from
// there instead.
bool isDebuggerActive()
{
    // Libstdc++ has a bug, where std::ifstream sets errno to 0
    // This way our users can properly assert over errno values
    ErrnoGuard guard;
    std::ifstream in("/proc/self/status");
    for (std::string line; std::getline(in, line);)
    {
        static const int PREFIX_LEN = 11;
        if (line.compare(0, PREFIX_LEN, "TracerPid:\t") == 0)
        {
            // We're traced if the PID is not 0 and no other PID starts
            // with 0 digit, so it's enough to check for just a single
            // character.
            return line.length() > PREFIX_LEN && line[PREFIX_LEN] != '0';
        }
    }

    return false;
}
} // namespace Catch
#elif defined(_MSC_VER)
extern "C" __declspec(dllimport) int __stdcall IsDebuggerPresent();
namespace Catch
{
bool isDebuggerActive()
{
    return IsDebuggerPresent() != 0;
}
} // namespace Catch
#elif defined(__MINGW32__)
extern "C" __declspec(dllimport) int __stdcall IsDebuggerPresent();
namespace Catch
{
bool isDebuggerActive()
{
    return IsDebuggerPresent() != 0;
}
} // namespace Catch
#else
namespace Catch
{
bool isDebuggerActive() { return false; }
} // namespace Catch
#endif // Platform
// end catch_debugger.cpp
// start catch_decomposer.cpp

namespace Catch
{

ITransientExpression::~ITransientExpression() = default;

void formatReconstructedExpression(std::ostream &os, std::string const &lhs, StringRef op, std::string const &rhs)
{
    if (lhs.size() + rhs.size() < 40 && lhs.find('\n') == std::string::npos && rhs.find('\n') == std::string::npos)
        os << lhs << " " << op << " " << rhs;
    else
        os << lhs << "\n"
           << op << "\n"
           << rhs;
}
} // namespace Catch
// end catch_decomposer.cpp
// start catch_errno_guard.cpp

#include <cerrno>

namespace Catch
{
ErrnoGuard::ErrnoGuard()
    : m_oldErrno(errno) {}
ErrnoGuard::~ErrnoGuard() { errno = m_oldErrno; }
} // namespace Catch
// end catch_errno_guard.cpp
// start catch_exception_translator_registry.cpp

// start catch_exception_translator_registry.h

#include <memory>
#include <string>
#include <vector>

namespace Catch
{

class ExceptionTranslatorRegistry : public IExceptionTranslatorRegistry
{
  public:
    ~ExceptionTranslatorRegistry();
    virtual void registerTranslator(const IExceptionTranslator *translator);
    virtual std::string translateActiveException() const override;
    std::string tryTranslators() const;

  private:
    std::vector<std::unique_ptr<IExceptionTranslator const>> m_translators;
};
} // namespace Catch

// end catch_exception_translator_registry.h
#ifdef __OBJC__
#import "Foundation/Foundation.h"
#endif

namespace Catch
{

ExceptionTranslatorRegistry::~ExceptionTranslatorRegistry()
{
}

void ExceptionTranslatorRegistry::registerTranslator(const IExceptionTranslator *translator)
{
    m_translators.push_back(std::unique_ptr<const IExceptionTranslator>(translator));
}

std::string ExceptionTranslatorRegistry::translateActiveException() const
{
    try
    {
#ifdef __OBJC__
        // In Objective-C try objective-c exceptions first
        @try
        {
            return tryTranslators();
        }
        @catch (NSException *exception)
        {
            return Catch::Detail::stringify([exception description]);
        }
#else
        // Compiling a mixed mode project with MSVC means that CLR
        // exceptions will be caught in (...) as well. However, these
        // do not fill-in std::current_exception and thus lead to crash
        // when attempting rethrow.
        // /EHa switch also causes structured exceptions to be caught
        // here, but they fill-in current_exception properly, so
        // at worst the output should be a little weird, instead of
        // causing a crash.
        if (std::current_exception() == nullptr)
        {
            return "Non C++ exception. Possibly a CLR exception.";
        }
        return tryTranslators();
#endif
    }
    catch (TestFailureException &)
    {
        std::rethrow_exception(std::current_exception());
    }
    catch (std::exception &ex)
    {
        return ex.what();
    }
    catch (std::string &msg)
    {
        return msg;
    }
    catch (const char *msg)
    {
        return msg;
    }
    catch (...)
    {
        return "Unknown exception";
    }
}

std::string ExceptionTranslatorRegistry::tryTranslators() const
{
    if (m_translators.empty())
        std::rethrow_exception(std::current_exception());
    else
        return m_translators[0]->translate(m_translators.begin() + 1, m_translators.end());
}
} // namespace Catch
// end catch_exception_translator_registry.cpp
// start catch_fatal_condition.cpp

#if defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wmissing-field-initializers"
#endif

#if defined(CATCH_CONFIG_WINDOWS_SEH) || defined(CATCH_CONFIG_POSIX_SIGNALS)

namespace
{
// Report the error condition
void reportFatal(char const *const message)
{
    Catch::getCurrentContext().getResultCapture()->handleFatalErrorCondition(message);
}
} // namespace

#endif // signals/SEH handling

#if defined(CATCH_CONFIG_WINDOWS_SEH)

namespace Catch
{
struct SignalDefs
{
    DWORD id;
    const char *name;
};

// There is no 1-1 mapping between signals and windows exceptions.
// Windows can easily distinguish between SO and SigSegV,
// but SigInt, SigTerm, etc are handled differently.
static SignalDefs signalDefs[] = {
    {EXCEPTION_ILLEGAL_INSTRUCTION, "SIGILL - Illegal instruction signal"},
    {EXCEPTION_STACK_OVERFLOW, "SIGSEGV - Stack overflow"},
    {EXCEPTION_ACCESS_VIOLATION, "SIGSEGV - Segmentation violation signal"},
    {EXCEPTION_INT_DIVIDE_BY_ZERO, "Divide by zero error"},
};

LONG CALLBACK FatalConditionHandler::handleVectoredException(PEXCEPTION_POINTERS ExceptionInfo)
{
    for (auto const &def : signalDefs)
    {
        if (ExceptionInfo->ExceptionRecord->ExceptionCode == def.id)
        {
            reportFatal(def.name);
        }
    }
    // If its not an exception we care about, pass it along.
    // This stops us from eating debugger breaks etc.
    return EXCEPTION_CONTINUE_SEARCH;
}

FatalConditionHandler::FatalConditionHandler()
{
    isSet = true;
    // 32k seems enough for Catch to handle stack overflow,
    // but the value was found experimentally, so there is no strong guarantee
    guaranteeSize = 32 * 1024;
    exceptionHandlerHandle = nullptr;
    // Register as first handler in current chain
    exceptionHandlerHandle = AddVectoredExceptionHandler(1, handleVectoredException);
    // Pass in guarantee size to be filled
    SetThreadStackGuarantee(&guaranteeSize);
}

void FatalConditionHandler::reset()
{
    if (isSet)
    {
        RemoveVectoredExceptionHandler(exceptionHandlerHandle);
        SetThreadStackGuarantee(&guaranteeSize);
        exceptionHandlerHandle = nullptr;
        isSet = false;
    }
}

FatalConditionHandler::~FatalConditionHandler()
{
    reset();
}

bool FatalConditionHandler::isSet = false;
ULONG FatalConditionHandler::guaranteeSize = 0;
PVOID FatalConditionHandler::exceptionHandlerHandle = nullptr;

} // namespace Catch

#elif defined(CATCH_CONFIG_POSIX_SIGNALS)

namespace Catch
{

struct SignalDefs
{
    int id;
    const char *name;
};

// 32kb for the alternate stack seems to be sufficient. However, this value
// is experimentally determined, so that's not guaranteed.
constexpr static std::size_t sigStackSize = 32768 >= MINSIGSTKSZ ? 32768 : MINSIGSTKSZ;

static SignalDefs signalDefs[] = {
    {SIGINT, "SIGINT - Terminal interrupt signal"},
    {SIGILL, "SIGILL - Illegal instruction signal"},
    {SIGFPE, "SIGFPE - Floating point error signal"},
    {SIGSEGV, "SIGSEGV - Segmentation violation signal"},
    {SIGTERM, "SIGTERM - Termination request signal"},
    {SIGABRT, "SIGABRT - Abort (abnormal termination) signal"}};

void FatalConditionHandler::handleSignal(int sig)
{
    char const *name = "<unknown signal>";
    for (auto const &def : signalDefs)
    {
        if (sig == def.id)
        {
            name = def.name;
            break;
        }
    }
    reset();
    reportFatal(name);
    raise(sig);
}

FatalConditionHandler::FatalConditionHandler()
{
    isSet = true;
    stack_t sigStack;
    sigStack.ss_sp = altStackMem;
    sigStack.ss_size = sigStackSize;
    sigStack.ss_flags = 0;
    sigaltstack(&sigStack, &oldSigStack);
    struct sigaction sa = {};

    sa.sa_handler = handleSignal;
    sa.sa_flags = SA_ONSTACK;
    for (std::size_t i = 0; i < sizeof(signalDefs) / sizeof(SignalDefs); ++i)
    {
        sigaction(signalDefs[i].id, &sa, &oldSigActions[i]);
    }
}

FatalConditionHandler::~FatalConditionHandler()
{
    reset();
}

void FatalConditionHandler::reset()
{
    if (isSet)
    {
        // Set signals back to previous values -- hopefully nobody overwrote them in the meantime
        for (std::size_t i = 0; i < sizeof(signalDefs) / sizeof(SignalDefs); ++i)
        {
            sigaction(signalDefs[i].id, &oldSigActions[i], nullptr);
        }
        // Return the old stack
        sigaltstack(&oldSigStack, nullptr);
        isSet = false;
    }
}

bool FatalConditionHandler::isSet = false;
struct sigaction FatalConditionHandler::oldSigActions[sizeof(signalDefs) / sizeof(SignalDefs)] = {};
stack_t FatalConditionHandler::oldSigStack = {};
char FatalConditionHandler::altStackMem[sigStackSize] = {};

} // namespace Catch

#else

namespace Catch
{
void FatalConditionHandler::reset() {}
} // namespace Catch

#endif // signals/SEH handling

#if defined(__GNUC__)
#pragma GCC diagnostic pop
#endif
// end catch_fatal_condition.cpp
// start catch_interfaces_capture.cpp

namespace Catch
{
IResultCapture::~IResultCapture() = default;
}
// end catch_interfaces_capture.cpp
// start catch_interfaces_config.cpp

namespace Catch
{
IConfig::~IConfig() = default;
}
// end catch_interfaces_config.cpp
// start catch_interfaces_exception.cpp

namespace Catch
{
IExceptionTranslator::~IExceptionTranslator() = default;
IExceptionTranslatorRegistry::~IExceptionTranslatorRegistry() = default;
} // namespace Catch
// end catch_interfaces_exception.cpp
// start catch_interfaces_registry_hub.cpp

namespace Catch
{
IRegistryHub::~IRegistryHub() = default;
IMutableRegistryHub::~IMutableRegistryHub() = default;
} // namespace Catch
// end catch_interfaces_registry_hub.cpp
// start catch_interfaces_reporter.cpp

// start catch_reporter_listening.h

namespace Catch
{

class ListeningReporter : public IStreamingReporter
{
    using Reporters = std::vector<IStreamingReporterPtr>;
    Reporters m_listeners;
    IStreamingReporterPtr m_reporter = nullptr;

  public:
    void addListener(IStreamingReporterPtr &&listener);
    void addReporter(IStreamingReporterPtr &&reporter);

  public: // IStreamingReporter
    ReporterPreferences getPreferences() const override;

    void noMatchingTestCases(std::string const &spec) override;

    static std::set<Verbosity> getSupportedVerbosities();

    void benchmarkStarting(BenchmarkInfo const &benchmarkInfo) override;
    void benchmarkEnded(BenchmarkStats const &benchmarkStats) override;

    void testRunStarting(TestRunInfo const &testRunInfo) override;
    void testGroupStarting(GroupInfo const &groupInfo) override;
    void testCaseStarting(TestCaseInfo const &testInfo) override;
    void sectionStarting(SectionInfo const &sectionInfo) override;
    void assertionStarting(AssertionInfo const &assertionInfo) override;

    // The return value indicates if the messages buffer should be cleared:
    bool assertionEnded(AssertionStats const &assertionStats) override;
    void sectionEnded(SectionStats const &sectionStats) override;
    void testCaseEnded(TestCaseStats const &testCaseStats) override;
    void testGroupEnded(TestGroupStats const &testGroupStats) override;
    void testRunEnded(TestRunStats const &testRunStats) override;

    void skipTest(TestCaseInfo const &testInfo) override;
    bool isMulti() const override;
};

} // end namespace Catch

// end catch_reporter_listening.h
namespace Catch
{

ReporterConfig::ReporterConfig(IConfigPtr const &_fullConfig)
    : m_stream(&_fullConfig->stream()), m_fullConfig(_fullConfig) {}

ReporterConfig::ReporterConfig(IConfigPtr const &_fullConfig, std::ostream &_stream)
    : m_stream(&_stream), m_fullConfig(_fullConfig) {}

std::ostream &ReporterConfig::stream() const { return *m_stream; }
IConfigPtr ReporterConfig::fullConfig() const { return m_fullConfig; }

TestRunInfo::TestRunInfo(std::string const &_name)
    : name(_name) {}

GroupInfo::GroupInfo(std::string const &_name,
                     std::size_t _groupIndex,
                     std::size_t _groupsCount)
    : name(_name), groupIndex(_groupIndex), groupsCounts(_groupsCount)
{
}

AssertionStats::AssertionStats(AssertionResult const &_assertionResult,
                               std::vector<MessageInfo> const &_infoMessages,
                               Totals const &_totals)
    : assertionResult(_assertionResult), infoMessages(_infoMessages), totals(_totals)
{
    assertionResult.m_resultData.lazyExpression.m_transientExpression = _assertionResult.m_resultData.lazyExpression.m_transientExpression;

    if (assertionResult.hasMessage())
    {
        // Copy message into messages list.
        // !TBD This should have been done earlier, somewhere
        MessageBuilder builder(assertionResult.getTestMacroName(), assertionResult.getSourceInfo(), assertionResult.getResultType());
        builder << assertionResult.getMessage();
        builder.m_info.message = builder.m_stream.str();

        infoMessages.push_back(builder.m_info);
    }
}

AssertionStats::~AssertionStats() = default;

SectionStats::SectionStats(SectionInfo const &_sectionInfo,
                           Counts const &_assertions,
                           double _durationInSeconds,
                           bool _missingAssertions)
    : sectionInfo(_sectionInfo), assertions(_assertions), durationInSeconds(_durationInSeconds), missingAssertions(_missingAssertions)
{
}

SectionStats::~SectionStats() = default;

TestCaseStats::TestCaseStats(TestCaseInfo const &_testInfo,
                             Totals const &_totals,
                             std::string const &_stdOut,
                             std::string const &_stdErr,
                             bool _aborting)
    : testInfo(_testInfo), totals(_totals), stdOut(_stdOut), stdErr(_stdErr), aborting(_aborting)
{
}

TestCaseStats::~TestCaseStats() = default;

TestGroupStats::TestGroupStats(GroupInfo const &_groupInfo,
                               Totals const &_totals,
                               bool _aborting)
    : groupInfo(_groupInfo), totals(_totals), aborting(_aborting)
{
}

TestGroupStats::TestGroupStats(GroupInfo const &_groupInfo)
    : groupInfo(_groupInfo), aborting(false)
{
}

TestGroupStats::~TestGroupStats() = default;

TestRunStats::TestRunStats(TestRunInfo const &_runInfo,
                           Totals const &_totals,
                           bool _aborting)
    : runInfo(_runInfo), totals(_totals), aborting(_aborting)
{
}

TestRunStats::~TestRunStats() = default;

void IStreamingReporter::fatalErrorEncountered(StringRef) {}
bool IStreamingReporter::isMulti() const { return false; }

IReporterFactory::~IReporterFactory() = default;
IReporterRegistry::~IReporterRegistry() = default;

} // end namespace Catch
// end catch_interfaces_reporter.cpp
// start catch_interfaces_runner.cpp

namespace Catch
{
IRunner::~IRunner() = default;
}
// end catch_interfaces_runner.cpp
// start catch_interfaces_testcase.cpp

namespace Catch
{
ITestInvoker::~ITestInvoker() = default;
ITestCaseRegistry::~ITestCaseRegistry() = default;
} // namespace Catch
// end catch_interfaces_testcase.cpp
// start catch_leak_detector.cpp

#ifdef CATCH_CONFIG_WINDOWS_CRTDBG
#include <crtdbg.h>

namespace Catch
{

LeakDetector::LeakDetector()
{
    int flag = _CrtSetDbgFlag(_CRTDBG_REPORT_FLAG);
    flag |= _CRTDBG_LEAK_CHECK_DF;
    flag |= _CRTDBG_ALLOC_MEM_DF;
    _CrtSetDbgFlag(flag);
    _CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE | _CRTDBG_MODE_DEBUG);
    _CrtSetReportFile(_CRT_WARN, _CRTDBG_FILE_STDERR);
    // Change this to leaking allocation's number to break there
    _CrtSetBreakAlloc(-1);
}
} // namespace Catch

#else

Catch::LeakDetector::LeakDetector()
{
}

#endif
// end catch_leak_detector.cpp
// start catch_list.cpp

// start catch_list.h

#include <set>

namespace Catch
{

std::size_t listTests(Config const &config);

std::size_t listTestsNamesOnly(Config const &config);

struct TagInfo
{
    void add(std::string const &spelling);
    std::string all() const;

    std::set<std::string> spellings;
    std::size_t count = 0;
};

std::size_t listTags(Config const &config);

std::size_t listReporters(Config const & /*config*/);

Option<std::size_t> list(Config const &config);

} // end namespace Catch

// end catch_list.h
// start catch_text.h

namespace Catch
{
using namespace clara::TextFlow;
}

// end catch_text.h
#include <algorithm>
#include <iomanip>
#include <limits>

namespace Catch
{

std::size_t listTests(Config const &config)
{
    TestSpec testSpec = config.testSpec();
    if (config.hasTestFilters())
        Catch::cout() << "Matching test cases:\n";
    else
    {
        Catch::cout() << "All available test cases:\n";
    }

    auto matchedTestCases = filterTests(getAllTestCasesSorted(config), testSpec, config);
    for (auto const &testCaseInfo : matchedTestCases)
    {
        Colour::Code colour = testCaseInfo.isHidden() ? Colour::SecondaryText : Colour::None;
        Colour colourGuard(colour);

        Catch::cout() << Column(testCaseInfo.name).initialIndent(2).indent(4) << "\n";
        if (config.verbosity() >= Verbosity::High)
        {
            Catch::cout() << Column(Catch::Detail::stringify(testCaseInfo.lineInfo)).indent(4) << std::endl;
            std::string description = testCaseInfo.description;
            if (description.empty())
                description = "(NO DESCRIPTION)";
            Catch::cout() << Column(description).indent(4) << std::endl;
        }
        if (!testCaseInfo.tags.empty())
            Catch::cout() << Column(testCaseInfo.tagsAsString()).indent(6) << "\n";
    }

    if (!config.hasTestFilters())
        Catch::cout() << pluralise(matchedTestCases.size(), "test case") << '\n'
                      << std::endl;
    else
        Catch::cout() << pluralise(matchedTestCases.size(), "matching test case") << '\n'
                      << std::endl;
    return matchedTestCases.size();
}

std::size_t listTestsNamesOnly(Config const &config)
{
    TestSpec testSpec = config.testSpec();
    std::size_t matchedTests = 0;
    std::vector<TestCase> matchedTestCases = filterTests(getAllTestCasesSorted(config), testSpec, config);
    for (auto const &testCaseInfo : matchedTestCases)
    {
        matchedTests++;
        if (startsWith(testCaseInfo.name, '#'))
            Catch::cout() << '"' << testCaseInfo.name << '"';
        else
            Catch::cout() << testCaseInfo.name;
        if (config.verbosity() >= Verbosity::High)
            Catch::cout() << "\t@" << testCaseInfo.lineInfo;
        Catch::cout() << std::endl;
    }
    return matchedTests;
}

void TagInfo::add(std::string const &spelling)
{
    ++count;
    spellings.insert(spelling);
}

std::string TagInfo::all() const
{
    std::string out;
    for (auto const &spelling : spellings)
        out += "[" + spelling + "]";
    return out;
}

std::size_t listTags(Config const &config)
{
    TestSpec testSpec = config.testSpec();
    if (config.hasTestFilters())
        Catch::cout() << "Tags for matching test cases:\n";
    else
    {
        Catch::cout() << "All available tags:\n";
    }

    std::map<std::string, TagInfo> tagCounts;

    std::vector<TestCase> matchedTestCases = filterTests(getAllTestCasesSorted(config), testSpec, config);
    for (auto const &testCase : matchedTestCases)
    {
        for (auto const &tagName : testCase.getTestCaseInfo().tags)
        {
            std::string lcaseTagName = toLower(tagName);
            auto countIt = tagCounts.find(lcaseTagName);
            if (countIt == tagCounts.end())
                countIt = tagCounts.insert(std::make_pair(lcaseTagName, TagInfo())).first;
            countIt->second.add(tagName);
        }
    }

    for (auto const &tagCount : tagCounts)
    {
        ReusableStringStream rss;
        rss << "  " << std::setw(2) << tagCount.second.count << "  ";
        auto str = rss.str();
        auto wrapper = Column(tagCount.second.all())
                           .initialIndent(0)
                           .indent(str.size())
                           .width(CATCH_CONFIG_CONSOLE_WIDTH - 10);
        Catch::cout() << str << wrapper << '\n';
    }
    Catch::cout() << pluralise(tagCounts.size(), "tag") << '\n'
                  << std::endl;
    return tagCounts.size();
}

std::size_t listReporters(Config const & /*config*/)
{
    Catch::cout() << "Available reporters:\n";
    IReporterRegistry::FactoryMap const &factories = getRegistryHub().getReporterRegistry().getFactories();
    std::size_t maxNameLen = 0;
    for (auto const &factoryKvp : factories)
        maxNameLen = (std::max)(maxNameLen, factoryKvp.first.size());

    for (auto const &factoryKvp : factories)
    {
        Catch::cout()
            << Column(factoryKvp.first + ":")
                       .indent(2)
                       .width(5 + maxNameLen)
                   + Column(factoryKvp.second->getDescription())
                         .initialIndent(0)
                         .indent(2)
                         .width(CATCH_CONFIG_CONSOLE_WIDTH - maxNameLen - 8)
            << "\n";
    }
    Catch::cout() << std::endl;
    return factories.size();
}

Option<std::size_t> list(Config const &config)
{
    Option<std::size_t> listedCount;
    if (config.listTests())
        listedCount = listedCount.valueOr(0) + listTests(config);
    if (config.listTestNamesOnly())
        listedCount = listedCount.valueOr(0) + listTestsNamesOnly(config);
    if (config.listTags())
        listedCount = listedCount.valueOr(0) + listTags(config);
    if (config.listReporters())
        listedCount = listedCount.valueOr(0) + listReporters(config);
    return listedCount;
}

} // end namespace Catch
// end catch_list.cpp
// start catch_matchers.cpp

namespace Catch
{
namespace Matchers
{
namespace Impl
{

std::string MatcherUntypedBase::toString() const
{
    if (m_cachedToString.empty())
        m_cachedToString = describe();
    return m_cachedToString;
}

MatcherUntypedBase::~MatcherUntypedBase() = default;

} // namespace Impl
} // namespace Matchers

using namespace Matchers;
using Matchers::Impl::MatcherBase;

} // namespace Catch
// end catch_matchers.cpp
// start catch_matchers_floating.cpp

// start catch_to_string.hpp

#include <string>

namespace Catch
{
template <typename T>
std::string to_string(T const &t)
{
#if defined(CATCH_CONFIG_CPP11_TO_STRING)
    return std::to_string(t);
#else
    ReusableStringStream rss;
    rss << t;
    return rss.str();
#endif
}
} // end namespace Catch

// end catch_to_string.hpp
#include <cstdint>
#include <cstdlib>
#include <cstring>
#include <stdexcept>

namespace Catch
{
namespace Matchers
{
namespace Floating
{
enum class FloatingPointKind : uint8_t
{
    Float,
    Double
};
}
} // namespace Matchers
} // namespace Catch

namespace
{

template <typename T>
struct Converter;

template <>
struct Converter<float>
{
    static_assert(sizeof(float) == sizeof(int32_t), "Important ULP matcher assumption violated");
    Converter(float f)
    {
        std::memcpy(&i, &f, sizeof(f));
    }
    int32_t i;
};

template <>
struct Converter<double>
{
    static_assert(sizeof(double) == sizeof(int64_t), "Important ULP matcher assumption violated");
    Converter(double d)
    {
        std::memcpy(&i, &d, sizeof(d));
    }
    int64_t i;
};

template <typename T>
auto convert(T t) -> Converter<T>
{
    return Converter<T>(t);
}

template <typename FP>
bool almostEqualUlps(FP lhs, FP rhs, int maxUlpDiff)
{
    // Comparison with NaN should always be false.
    // This way we can rule it out before getting into the ugly details
    if (std::isnan(lhs) || std::isnan(rhs))
    {
        return false;
    }

    auto lc = convert(lhs);
    auto rc = convert(rhs);

    if ((lc.i < 0) != (rc.i < 0))
    {
        // Potentially we can have +0 and -0
        return lhs == rhs;
    }

    auto ulpDiff = std::abs(lc.i - rc.i);
    return ulpDiff <= maxUlpDiff;
}

} // namespace

namespace Catch
{
namespace Matchers
{
namespace Floating
{
WithinAbsMatcher::WithinAbsMatcher(double target, double margin)
    : m_target{target}, m_margin{margin}
{
    if (m_margin < 0)
    {
        throw std::domain_error("Allowed margin difference has to be >= 0");
    }
}

// Performs equivalent check of std::fabs(lhs - rhs) <= margin
// But without the subtraction to allow for INFINITY in comparison
bool WithinAbsMatcher::match(double const &matchee) const
{
    return (matchee + m_margin >= m_target) && (m_target + m_margin >= matchee);
}

std::string WithinAbsMatcher::describe() const
{
    return "is within " + ::Catch::Detail::stringify(m_margin) + " of " + ::Catch::Detail::stringify(m_target);
}

WithinUlpsMatcher::WithinUlpsMatcher(double target, int ulps, FloatingPointKind baseType)
    : m_target{target}, m_ulps{ulps}, m_type{baseType}
{
    if (m_ulps < 0)
    {
        throw std::domain_error("Allowed ulp difference has to be >= 0");
    }
}

bool WithinUlpsMatcher::match(double const &matchee) const
{
    switch (m_type)
    {
        case FloatingPointKind::Float:
            return almostEqualUlps<float>(static_cast<float>(matchee), static_cast<float>(m_target), m_ulps);
        case FloatingPointKind::Double:
            return almostEqualUlps<double>(matchee, m_target, m_ulps);
        default:
            throw std::domain_error("Unknown FloatingPointKind value");
    }
}

std::string WithinUlpsMatcher::describe() const
{
    return "is within " + Catch::to_string(m_ulps) + " ULPs of " + ::Catch::Detail::stringify(m_target) + ((m_type == FloatingPointKind::Float) ? "f" : "");
}

} // namespace Floating

Floating::WithinUlpsMatcher WithinULP(double target, int maxUlpDiff)
{
    return Floating::WithinUlpsMatcher(target, maxUlpDiff, Floating::FloatingPointKind::Double);
}

Floating::WithinUlpsMatcher WithinULP(float target, int maxUlpDiff)
{
    return Floating::WithinUlpsMatcher(target, maxUlpDiff, Floating::FloatingPointKind::Float);
}

Floating::WithinAbsMatcher WithinAbs(double target, double margin)
{
    return Floating::WithinAbsMatcher(target, margin);
}

} // namespace Matchers
} // namespace Catch

// end catch_matchers_floating.cpp
// start catch_matchers_generic.cpp

std::string Catch::Matchers::Generic::Detail::finalizeDescription(const std::string &desc)
{
    if (desc.empty())
    {
        return "matches undescribed predicate";
    }
    else
    {
        return "matches predicate: \"" + desc + '"';
    }
}
// end catch_matchers_generic.cpp
// start catch_matchers_string.cpp

#include <regex>

namespace Catch
{
namespace Matchers
{

namespace StdString
{

CasedString::CasedString(std::string const &str, CaseSensitive::Choice caseSensitivity)
    : m_caseSensitivity(caseSensitivity), m_str(adjustString(str))
{
}
std::string CasedString::adjustString(std::string const &str) const
{
    return m_caseSensitivity == CaseSensitive::No ? toLower(str) : str;
}
std::string CasedString::caseSensitivitySuffix() const
{
    return m_caseSensitivity == CaseSensitive::No ? " (case insensitive)" : std::string();
}

StringMatcherBase::StringMatcherBase(std::string const &operation, CasedString const &comparator)
    : m_comparator(comparator), m_operation(operation)
{
}

std::string StringMatcherBase::describe() const
{
    std::string description;
    description.reserve(5 + m_operation.size() + m_comparator.m_str.size() + m_comparator.caseSensitivitySuffix().size());
    description += m_operation;
    description += ": \"";
    description += m_comparator.m_str;
    description += "\"";
    description += m_comparator.caseSensitivitySuffix();
    return description;
}

EqualsMatcher::EqualsMatcher(CasedString const &comparator)
    : StringMatcherBase("equals", comparator) {}

bool EqualsMatcher::match(std::string const &source) const
{
    return m_comparator.adjustString(source) == m_comparator.m_str;
}

ContainsMatcher::ContainsMatcher(CasedString const &comparator)
    : StringMatcherBase("contains", comparator) {}

bool ContainsMatcher::match(std::string const &source) const
{
    return contains(m_comparator.adjustString(source), m_comparator.m_str);
}

StartsWithMatcher::StartsWithMatcher(CasedString const &comparator)
    : StringMatcherBase("starts with", comparator) {}

bool StartsWithMatcher::match(std::string const &source) const
{
    return startsWith(m_comparator.adjustString(source), m_comparator.m_str);
}

EndsWithMatcher::EndsWithMatcher(CasedString const &comparator)
    : StringMatcherBase("ends with", comparator) {}

bool EndsWithMatcher::match(std::string const &source) const
{
    return endsWith(m_comparator.adjustString(source), m_comparator.m_str);
}

RegexMatcher::RegexMatcher(std::string regex, CaseSensitive::Choice caseSensitivity)
    : m_regex(std::move(regex)), m_caseSensitivity(caseSensitivity) {}

bool RegexMatcher::match(std::string const &matchee) const
{
    auto flags = std::regex::ECMAScript; // ECMAScript is the default syntax option anyway
    if (m_caseSensitivity == CaseSensitive::Choice::No)
    {
        flags |= std::regex::icase;
    }
    auto reg = std::regex(m_regex, flags);
    return std::regex_match(matchee, reg);
}

std::string RegexMatcher::describe() const
{
    return "matches " + ::Catch::Detail::stringify(m_regex) + ((m_caseSensitivity == CaseSensitive::Choice::Yes) ? " case sensitively" : " case insensitively");
}

} // namespace StdString

StdString::EqualsMatcher Equals(std::string const &str, CaseSensitive::Choice caseSensitivity)
{
    return StdString::EqualsMatcher(StdString::CasedString(str, caseSensitivity));
}
StdString::ContainsMatcher Contains(std::string const &str, CaseSensitive::Choice caseSensitivity)
{
    return StdString::ContainsMatcher(StdString::CasedString(str, caseSensitivity));
}
StdString::EndsWithMatcher EndsWith(std::string const &str, CaseSensitive::Choice caseSensitivity)
{
    return StdString::EndsWithMatcher(StdString::CasedString(str, caseSensitivity));
}
StdString::StartsWithMatcher StartsWith(std::string const &str, CaseSensitive::Choice caseSensitivity)
{
    return StdString::StartsWithMatcher(StdString::CasedString(str, caseSensitivity));
}

StdString::RegexMatcher Matches(std::string const &regex, CaseSensitive::Choice caseSensitivity)
{
    return StdString::RegexMatcher(regex, caseSensitivity);
}

} // namespace Matchers
} // namespace Catch
// end catch_matchers_string.cpp
// start catch_message.cpp

// start catch_uncaught_exceptions.h

namespace Catch
{
bool uncaught_exceptions();
} // end namespace Catch

// end catch_uncaught_exceptions.h
namespace Catch
{

MessageInfo::MessageInfo(std::string const &_macroName,
                         SourceLineInfo const &_lineInfo,
                         ResultWas::OfType _type)
    : macroName(_macroName), lineInfo(_lineInfo), type(_type), sequence(++globalCount)
{
}

bool MessageInfo::operator==(MessageInfo const &other) const
{
    return sequence == other.sequence;
}

bool MessageInfo::operator<(MessageInfo const &other) const
{
    return sequence < other.sequence;
}

// This may need protecting if threading support is added
unsigned int MessageInfo::globalCount = 0;

////////////////////////////////////////////////////////////////////////////

Catch::MessageBuilder::MessageBuilder(std::string const &macroName,
                                      SourceLineInfo const &lineInfo,
                                      ResultWas::OfType type)
    : m_info(macroName, lineInfo, type) {}

////////////////////////////////////////////////////////////////////////////

ScopedMessage::ScopedMessage(MessageBuilder const &builder)
    : m_info(builder.m_info)
{
    m_info.message = builder.m_stream.str();
    getResultCapture().pushScopedMessage(m_info);
}

ScopedMessage::~ScopedMessage()
{
    if (!uncaught_exceptions())
    {
        getResultCapture().popScopedMessage(m_info);
    }
}
} // end namespace Catch
// end catch_message.cpp
// start catch_output_redirect.cpp

// start catch_output_redirect.h
#ifndef TWOBLUECUBES_CATCH_OUTPUT_REDIRECT_H
#define TWOBLUECUBES_CATCH_OUTPUT_REDIRECT_H

#include <cstdio>
#include <iosfwd>
#include <string>

namespace Catch
{

class RedirectedStream
{
    std::ostream &m_originalStream;
    std::ostream &m_redirectionStream;
    std::streambuf *m_prevBuf;

  public:
    RedirectedStream(std::ostream &originalStream, std::ostream &redirectionStream);
    ~RedirectedStream();
};

class RedirectedStdOut
{
    ReusableStringStream m_rss;
    RedirectedStream m_cout;

  public:
    RedirectedStdOut();
    auto str() const -> std::string;
};

// StdErr has two constituent streams in C++, std::cerr and std::clog
// This means that we need to redirect 2 streams into 1 to keep proper
// order of writes
class RedirectedStdErr
{
    ReusableStringStream m_rss;
    RedirectedStream m_cerr;
    RedirectedStream m_clog;

  public:
    RedirectedStdErr();
    auto str() const -> std::string;
};

// Windows's implementation of std::tmpfile is terrible (it tries
// to create a file inside system folder, thus requiring elevated
// privileges for the binary), so we have to use tmpnam(_s) and
// create the file ourselves there.
class TempFile
{
  public:
    TempFile(TempFile const &) = delete;
    TempFile &operator=(TempFile const &) = delete;
    TempFile(TempFile &&) = delete;
    TempFile &operator=(TempFile &&) = delete;

    TempFile();
    ~TempFile();

    std::FILE *getFile();
    std::string getContents();

  private:
    std::FILE *m_file = nullptr;
#if defined(_MSC_VER)
    char m_buffer[L_tmpnam] = {0};
#endif
};

class OutputRedirect
{
  public:
    OutputRedirect(OutputRedirect const &) = delete;
    OutputRedirect &operator=(OutputRedirect const &) = delete;
    OutputRedirect(OutputRedirect &&) = delete;
    OutputRedirect &operator=(OutputRedirect &&) = delete;

    OutputRedirect(std::string &stdout_dest, std::string &stderr_dest);
    ~OutputRedirect();

  private:
    int m_originalStdout = -1;
    int m_originalStderr = -1;
    TempFile m_stdoutFile;
    TempFile m_stderrFile;
    std::string &m_stdoutDest;
    std::string &m_stderrDest;
};

} // end namespace Catch

#endif // TWOBLUECUBES_CATCH_OUTPUT_REDIRECT_H
// end catch_output_redirect.h
#include <cstdio>
#include <cstring>
#include <fstream>
#include <sstream>
#include <stdexcept>

#if defined(_MSC_VER)
#include <io.h> //_dup and _dup2
#define dup _dup
#define dup2 _dup2
#define fileno _fileno
#else
#include <unistd.h> // dup and dup2
#endif

namespace Catch
{

RedirectedStream::RedirectedStream(std::ostream &originalStream, std::ostream &redirectionStream)
    : m_originalStream(originalStream), m_redirectionStream(redirectionStream), m_prevBuf(m_originalStream.rdbuf())
{
    m_originalStream.rdbuf(m_redirectionStream.rdbuf());
}

RedirectedStream::~RedirectedStream()
{
    m_originalStream.rdbuf(m_prevBuf);
}

RedirectedStdOut::RedirectedStdOut()
    : m_cout(Catch::cout(), m_rss.get()) {}
auto RedirectedStdOut::str() const -> std::string { return m_rss.str(); }

RedirectedStdErr::RedirectedStdErr()
    : m_cerr(Catch::cerr(), m_rss.get()), m_clog(Catch::clog(), m_rss.get())
{
}
auto RedirectedStdErr::str() const -> std::string { return m_rss.str(); }

#if defined(_MSC_VER)
TempFile::TempFile()
{
    if (tmpnam_s(m_buffer))
    {
        throw std::runtime_error("Could not get a temp filename");
    }
    if (fopen_s(&m_file, m_buffer, "w"))
    {
        char buffer[100];
        if (strerror_s(buffer, errno))
        {
            throw std::runtime_error("Could not translate errno to string");
        }
        throw std::runtime_error("Could not open the temp file: " + std::string(m_buffer) + buffer);
    }
}
#else
TempFile::TempFile()
{
    m_file = std::tmpfile();
    if (!m_file)
    {
        throw std::runtime_error("Could not create a temp file.");
    }
}

#endif

TempFile::~TempFile()
{
    // TBD: What to do about errors here?
    std::fclose(m_file);
    // We manually create the file on Windows only, on Linux
    // it will be autodeleted
#if defined(_MSC_VER)
    std::remove(m_buffer);
#endif
}

FILE *TempFile::getFile()
{
    return m_file;
}

std::string TempFile::getContents()
{
    std::stringstream sstr;
    char buffer[100] = {};
    std::rewind(m_file);
    while (std::fgets(buffer, sizeof(buffer), m_file))
    {
        sstr << buffer;
    }
    return sstr.str();
}

OutputRedirect::OutputRedirect(std::string &stdout_dest, std::string &stderr_dest)
    : m_originalStdout(dup(1)), m_originalStderr(dup(2)), m_stdoutDest(stdout_dest), m_stderrDest(stderr_dest)
{
    dup2(fileno(m_stdoutFile.getFile()), 1);
    dup2(fileno(m_stderrFile.getFile()), 2);
}

OutputRedirect::~OutputRedirect()
{
    Catch::cout() << std::flush;
    fflush(stdout);
    // Since we support overriding these streams, we flush cerr
    // even though std::cerr is unbuffered
    Catch::cerr() << std::flush;
    Catch::clog() << std::flush;
    fflush(stderr);

    dup2(m_originalStdout, 1);
    dup2(m_originalStderr, 2);

    m_stdoutDest += m_stdoutFile.getContents();
    m_stderrDest += m_stderrFile.getContents();
}

} // namespace Catch

#if defined(_MSC_VER)
#undef dup
#undef dup2
#undef fileno
#endif
// end catch_output_redirect.cpp
// start catch_random_number_generator.cpp

// start catch_random_number_generator.h

#include <algorithm>

namespace Catch
{

struct IConfig;

void seedRng(IConfig const &config);

unsigned int rngSeed();

struct RandomNumberGenerator
{
    using result_type = unsigned int;

    static constexpr result_type(min)() { return 0; }
    static constexpr result_type(max)() { return 1000000; }

    result_type operator()(result_type n) const;
    result_type operator()() const;

    template <typename V>
    static void shuffle(V &vector)
    {
        RandomNumberGenerator rng;
        std::shuffle(vector.begin(), vector.end(), rng);
    }
};

} // namespace Catch

// end catch_random_number_generator.h
#include <cstdlib>

namespace Catch
{

void seedRng(IConfig const &config)
{
    if (config.rngSeed() != 0)
        std::srand(config.rngSeed());
}
unsigned int rngSeed()
{
    return getCurrentContext().getConfig()->rngSeed();
}

RandomNumberGenerator::result_type RandomNumberGenerator::operator()(result_type n) const
{
    return std::rand() % n;
}
RandomNumberGenerator::result_type RandomNumberGenerator::operator()() const
{
    return std::rand() % (max)();
}

} // namespace Catch
// end catch_random_number_generator.cpp
// start catch_registry_hub.cpp

// start catch_test_case_registry_impl.h

#include <algorithm>
#include <ios>
#include <set>
#include <vector>

namespace Catch
{

class TestCase;
struct IConfig;

std::vector<TestCase> sortTests(IConfig const &config, std::vector<TestCase> const &unsortedTestCases);
bool matchTest(TestCase const &testCase, TestSpec const &testSpec, IConfig const &config);

void enforceNoDuplicateTestCases(std::vector<TestCase> const &functions);

std::vector<TestCase> filterTests(std::vector<TestCase> const &testCases, TestSpec const &testSpec, IConfig const &config);
std::vector<TestCase> const &getAllTestCasesSorted(IConfig const &config);

class TestRegistry : public ITestCaseRegistry
{
  public:
    virtual ~TestRegistry() = default;

    virtual void registerTest(TestCase const &testCase);

    std::vector<TestCase> const &getAllTests() const override;
    std::vector<TestCase> const &getAllTestsSorted(IConfig const &config) const override;

  private:
    std::vector<TestCase> m_functions;
    mutable RunTests::InWhatOrder m_currentSortOrder = RunTests::InDeclarationOrder;
    mutable std::vector<TestCase> m_sortedFunctions;
    std::size_t m_unnamedCount = 0;
    std::ios_base::Init m_ostreamInit; // Forces cout/ cerr to be initialised
};

///////////////////////////////////////////////////////////////////////////

class TestInvokerAsFunction : public ITestInvoker
{
    void (*m_testAsFunction)();

  public:
    TestInvokerAsFunction(void (*testAsFunction)()) noexcept;

    void invoke() const override;
};

std::string extractClassName(StringRef const &classOrQualifiedMethodName);

///////////////////////////////////////////////////////////////////////////

} // end namespace Catch

// end catch_test_case_registry_impl.h
// start catch_reporter_registry.h

#include <map>

namespace Catch
{

class ReporterRegistry : public IReporterRegistry
{

  public:
    ~ReporterRegistry() override;

    IStreamingReporterPtr create(std::string const &name, IConfigPtr const &config) const override;

    void registerReporter(std::string const &name, IReporterFactoryPtr const &factory);
    void registerListener(IReporterFactoryPtr const &factory);

    FactoryMap const &getFactories() const override;
    Listeners const &getListeners() const override;

  private:
    FactoryMap m_factories;
    Listeners m_listeners;
};
} // namespace Catch

// end catch_reporter_registry.h
// start catch_tag_alias_registry.h

// start catch_tag_alias.h

#include <string>

namespace Catch
{

struct TagAlias
{
    TagAlias(std::string const &_tag, SourceLineInfo _lineInfo);

    std::string tag;
    SourceLineInfo lineInfo;
};

} // end namespace Catch

// end catch_tag_alias.h
#include <map>

namespace Catch
{

class TagAliasRegistry : public ITagAliasRegistry
{
  public:
    ~TagAliasRegistry() override;
    TagAlias const *find(std::string const &alias) const override;
    std::string expandAliases(std::string const &unexpandedTestSpec) const override;
    void add(std::string const &alias, std::string const &tag, SourceLineInfo const &lineInfo);

  private:
    std::map<std::string, TagAlias> m_registry;
};

} // end namespace Catch

// end catch_tag_alias_registry.h
// start catch_startup_exception_registry.h

#include <exception>
#include <vector>

namespace Catch
{

class StartupExceptionRegistry
{
  public:
    void add(std::exception_ptr const &exception) noexcept;
    std::vector<std::exception_ptr> const &getExceptions() const noexcept;

  private:
    std::vector<std::exception_ptr> m_exceptions;
};

} // end namespace Catch

// end catch_startup_exception_registry.h
namespace Catch
{

namespace
{

class RegistryHub : public IRegistryHub, public IMutableRegistryHub, private NonCopyable
{

  public: // IRegistryHub
    RegistryHub() = default;
    IReporterRegistry const &getReporterRegistry() const override
    {
        return m_reporterRegistry;
    }
    ITestCaseRegistry const &getTestCaseRegistry() const override
    {
        return m_testCaseRegistry;
    }
    IExceptionTranslatorRegistry &getExceptionTranslatorRegistry() override
    {
        return m_exceptionTranslatorRegistry;
    }
    ITagAliasRegistry const &getTagAliasRegistry() const override
    {
        return m_tagAliasRegistry;
    }
    StartupExceptionRegistry const &getStartupExceptionRegistry() const override
    {
        return m_exceptionRegistry;
    }

  public: // IMutableRegistryHub
    void registerReporter(std::string const &name, IReporterFactoryPtr const &factory) override
    {
        m_reporterRegistry.registerReporter(name, factory);
    }
    void registerListener(IReporterFactoryPtr const &factory) override
    {
        m_reporterRegistry.registerListener(factory);
    }
    void registerTest(TestCase const &testInfo) override
    {
        m_testCaseRegistry.registerTest(testInfo);
    }
    void registerTranslator(const IExceptionTranslator *translator) override
    {
        m_exceptionTranslatorRegistry.registerTranslator(translator);
    }
    void registerTagAlias(std::string const &alias, std::string const &tag, SourceLineInfo const &lineInfo) override
    {
        m_tagAliasRegistry.add(alias, tag, lineInfo);
    }
    void registerStartupException() noexcept override
    {
        m_exceptionRegistry.add(std::current_exception());
    }

  private:
    TestRegistry m_testCaseRegistry;
    ReporterRegistry m_reporterRegistry;
    ExceptionTranslatorRegistry m_exceptionTranslatorRegistry;
    TagAliasRegistry m_tagAliasRegistry;
    StartupExceptionRegistry m_exceptionRegistry;
};

// Single, global, instance
RegistryHub *&getTheRegistryHub()
{
    static RegistryHub *theRegistryHub = nullptr;
    if (!theRegistryHub)
        theRegistryHub = new RegistryHub();
    return theRegistryHub;
}
} // namespace

IRegistryHub &getRegistryHub()
{
    return *getTheRegistryHub();
}
IMutableRegistryHub &getMutableRegistryHub()
{
    return *getTheRegistryHub();
}
void cleanUp()
{
    delete getTheRegistryHub();
    getTheRegistryHub() = nullptr;
    cleanUpContext();
    ReusableStringStream::cleanup();
}
std::string translateActiveException()
{
    return getRegistryHub().getExceptionTranslatorRegistry().translateActiveException();
}

} // end namespace Catch
// end catch_registry_hub.cpp
// start catch_reporter_registry.cpp

namespace Catch
{

ReporterRegistry::~ReporterRegistry() = default;

IStreamingReporterPtr ReporterRegistry::create(std::string const &name, IConfigPtr const &config) const
{
    auto it = m_factories.find(name);
    if (it == m_factories.end())
        return nullptr;
    return it->second->create(ReporterConfig(config));
}

void ReporterRegistry::registerReporter(std::string const &name, IReporterFactoryPtr const &factory)
{
    m_factories.emplace(name, factory);
}
void ReporterRegistry::registerListener(IReporterFactoryPtr const &factory)
{
    m_listeners.push_back(factory);
}

IReporterRegistry::FactoryMap const &ReporterRegistry::getFactories() const
{
    return m_factories;
}
IReporterRegistry::Listeners const &ReporterRegistry::getListeners() const
{
    return m_listeners;
}

} // namespace Catch
// end catch_reporter_registry.cpp
// start catch_result_type.cpp

namespace Catch
{

bool isOk(ResultWas::OfType resultType)
{
    return (resultType & ResultWas::FailureBit) == 0;
}
bool isJustInfo(int flags)
{
    return flags == ResultWas::Info;
}

ResultDisposition::Flags operator|(ResultDisposition::Flags lhs, ResultDisposition::Flags rhs)
{
    return static_cast<ResultDisposition::Flags>(static_cast<int>(lhs) | static_cast<int>(rhs));
}

bool shouldContinueOnFailure(int flags) { return (flags & ResultDisposition::ContinueOnFailure) != 0; }
bool shouldSuppressFailure(int flags) { return (flags & ResultDisposition::SuppressFail) != 0; }

} // end namespace Catch
// end catch_result_type.cpp
// start catch_run_context.cpp

#include <algorithm>
#include <cassert>
#include <sstream>

namespace Catch
{

RunContext::RunContext(IConfigPtr const &_config, IStreamingReporterPtr &&reporter)
    : m_runInfo(_config->name()), m_context(getCurrentMutableContext()), m_config(_config), m_reporter(std::move(reporter)), m_lastAssertionInfo{StringRef(), SourceLineInfo("", 0), StringRef(), ResultDisposition::Normal}, m_includeSuccessfulResults(m_config->includeSuccessfulResults())
{
    m_context.setRunner(this);
    m_context.setConfig(m_config);
    m_context.setResultCapture(this);
    m_reporter->testRunStarting(m_runInfo);
}

RunContext::~RunContext()
{
    m_reporter->testRunEnded(TestRunStats(m_runInfo, m_totals, aborting()));
}

void RunContext::testGroupStarting(std::string const &testSpec, std::size_t groupIndex, std::size_t groupsCount)
{
    m_reporter->testGroupStarting(GroupInfo(testSpec, groupIndex, groupsCount));
}

void RunContext::testGroupEnded(std::string const &testSpec, Totals const &totals, std::size_t groupIndex, std::size_t groupsCount)
{
    m_reporter->testGroupEnded(TestGroupStats(GroupInfo(testSpec, groupIndex, groupsCount), totals, aborting()));
}

Totals RunContext::runTest(TestCase const &testCase)
{
    Totals prevTotals = m_totals;

    std::string redirectedCout;
    std::string redirectedCerr;

    auto const &testInfo = testCase.getTestCaseInfo();

    m_reporter->testCaseStarting(testInfo);

    m_activeTestCase = &testCase;

    ITracker &rootTracker = m_trackerContext.startRun();
    assert(rootTracker.isSectionTracker());
    static_cast<SectionTracker &>(rootTracker).addInitialFilters(m_config->getSectionsToRun());
    do
    {
        m_trackerContext.startCycle();
        m_testCaseTracker = &SectionTracker::acquire(m_trackerContext, TestCaseTracking::NameAndLocation(testInfo.name, testInfo.lineInfo));
        runCurrentTest(redirectedCout, redirectedCerr);
    } while (!m_testCaseTracker->isSuccessfullyCompleted() && !aborting());

    Totals deltaTotals = m_totals.delta(prevTotals);
    if (testInfo.expectedToFail() && deltaTotals.testCases.passed > 0)
    {
        deltaTotals.assertions.failed++;
        deltaTotals.testCases.passed--;
        deltaTotals.testCases.failed++;
    }
    m_totals.testCases += deltaTotals.testCases;
    m_reporter->testCaseEnded(TestCaseStats(testInfo,
                                            deltaTotals,
                                            redirectedCout,
                                            redirectedCerr,
                                            aborting()));

    m_activeTestCase = nullptr;
    m_testCaseTracker = nullptr;

    return deltaTotals;
}

IConfigPtr RunContext::config() const
{
    return m_config;
}

IStreamingReporter &RunContext::reporter() const
{
    return *m_reporter;
}

void RunContext::assertionEnded(AssertionResult const &result)
{
    if (result.getResultType() == ResultWas::Ok)
    {
        m_totals.assertions.passed++;
        m_lastAssertionPassed = true;
    }
    else if (!result.isOk())
    {
        m_lastAssertionPassed = false;
        if (m_activeTestCase->getTestCaseInfo().okToFail())
            m_totals.assertions.failedButOk++;
        else
            m_totals.assertions.failed++;
    }
    else
    {
        m_lastAssertionPassed = true;
    }

    // We have no use for the return value (whether messages should be cleared), because messages were made scoped
    // and should be let to clear themselves out.
    static_cast<void>(m_reporter->assertionEnded(AssertionStats(result, m_messages, m_totals)));

    // Reset working state
    resetAssertionInfo();
    m_lastResult = result;
}
void RunContext::resetAssertionInfo()
{
    m_lastAssertionInfo.macroName = StringRef();
    m_lastAssertionInfo.capturedExpression = "{Unknown expression after the reported line}"_sr;
}

bool RunContext::sectionStarted(SectionInfo const &sectionInfo, Counts &assertions)
{
    ITracker &sectionTracker = SectionTracker::acquire(m_trackerContext, TestCaseTracking::NameAndLocation(sectionInfo.name, sectionInfo.lineInfo));
    if (!sectionTracker.isOpen())
        return false;
    m_activeSections.push_back(&sectionTracker);

    m_lastAssertionInfo.lineInfo = sectionInfo.lineInfo;

    m_reporter->sectionStarting(sectionInfo);

    assertions = m_totals.assertions;

    return true;
}

bool RunContext::testForMissingAssertions(Counts &assertions)
{
    if (assertions.total() != 0)
        return false;
    if (!m_config->warnAboutMissingAssertions())
        return false;
    if (m_trackerContext.currentTracker().hasChildren())
        return false;
    m_totals.assertions.failed++;
    assertions.failed++;
    return true;
}

void RunContext::sectionEnded(SectionEndInfo const &endInfo)
{
    Counts assertions = m_totals.assertions - endInfo.prevAssertions;
    bool missingAssertions = testForMissingAssertions(assertions);

    if (!m_activeSections.empty())
    {
        m_activeSections.back()->close();
        m_activeSections.pop_back();
    }

    m_reporter->sectionEnded(SectionStats(endInfo.sectionInfo, assertions, endInfo.durationInSeconds, missingAssertions));
    m_messages.clear();
}

void RunContext::sectionEndedEarly(SectionEndInfo const &endInfo)
{
    if (m_unfinishedSections.empty())
        m_activeSections.back()->fail();
    else
        m_activeSections.back()->close();
    m_activeSections.pop_back();

    m_unfinishedSections.push_back(endInfo);
}
void RunContext::benchmarkStarting(BenchmarkInfo const &info)
{
    m_reporter->benchmarkStarting(info);
}
void RunContext::benchmarkEnded(BenchmarkStats const &stats)
{
    m_reporter->benchmarkEnded(stats);
}

void RunContext::pushScopedMessage(MessageInfo const &message)
{
    m_messages.push_back(message);
}

void RunContext::popScopedMessage(MessageInfo const &message)
{
    m_messages.erase(std::remove(m_messages.begin(), m_messages.end(), message), m_messages.end());
}

std::string RunContext::getCurrentTestName() const
{
    return m_activeTestCase ? m_activeTestCase->getTestCaseInfo().name : std::string();
}

const AssertionResult *RunContext::getLastResult() const
{
    return &(*m_lastResult);
}

void RunContext::exceptionEarlyReported()
{
    m_shouldReportUnexpected = false;
}

void RunContext::handleFatalErrorCondition(StringRef message)
{
    // First notify reporter that bad things happened
    m_reporter->fatalErrorEncountered(message);

    // Don't rebuild the result -- the stringification itself can cause more fatal errors
    // Instead, fake a result data.
    AssertionResultData tempResult(ResultWas::FatalErrorCondition, {false});
    tempResult.message = message;
    AssertionResult result(m_lastAssertionInfo, tempResult);

    assertionEnded(result);

    handleUnfinishedSections();

    // Recreate section for test case (as we will lose the one that was in scope)
    auto const &testCaseInfo = m_activeTestCase->getTestCaseInfo();
    SectionInfo testCaseSection(testCaseInfo.lineInfo, testCaseInfo.name, testCaseInfo.description);

    Counts assertions;
    assertions.failed = 1;
    SectionStats testCaseSectionStats(testCaseSection, assertions, 0, false);
    m_reporter->sectionEnded(testCaseSectionStats);

    auto const &testInfo = m_activeTestCase->getTestCaseInfo();

    Totals deltaTotals;
    deltaTotals.testCases.failed = 1;
    deltaTotals.assertions.failed = 1;
    m_reporter->testCaseEnded(TestCaseStats(testInfo,
                                            deltaTotals,
                                            std::string(),
                                            std::string(),
                                            false));
    m_totals.testCases.failed++;
    testGroupEnded(std::string(), m_totals, 1, 1);
    m_reporter->testRunEnded(TestRunStats(m_runInfo, m_totals, false));
}

bool RunContext::lastAssertionPassed()
{
    return m_lastAssertionPassed;
}

void RunContext::assertionPassed()
{
    m_lastAssertionPassed = true;
    ++m_totals.assertions.passed;
    resetAssertionInfo();
}

bool RunContext::aborting() const
{
    return m_totals.assertions.failed == static_cast<std::size_t>(m_config->abortAfter());
}

void RunContext::runCurrentTest(std::string &redirectedCout, std::string &redirectedCerr)
{
    auto const &testCaseInfo = m_activeTestCase->getTestCaseInfo();
    SectionInfo testCaseSection(testCaseInfo.lineInfo, testCaseInfo.name, testCaseInfo.description);
    m_reporter->sectionStarting(testCaseSection);
    Counts prevAssertions = m_totals.assertions;
    double duration = 0;
    m_shouldReportUnexpected = true;
    m_lastAssertionInfo = {"TEST_CASE"_sr, testCaseInfo.lineInfo, StringRef(), ResultDisposition::Normal};

    seedRng(*m_config);

    Timer timer;
    try
    {
        if (m_reporter->getPreferences().shouldRedirectStdOut)
        {
#if !defined(CATCH_CONFIG_EXPERIMENTAL_REDIRECT)
            RedirectedStdOut redirectedStdOut;
            RedirectedStdErr redirectedStdErr;

            timer.start();
            invokeActiveTestCase();
            redirectedCout += redirectedStdOut.str();
            redirectedCerr += redirectedStdErr.str();
#else
            OutputRedirect r(redirectedCout, redirectedCerr);
            timer.start();
            invokeActiveTestCase();
#endif
        }
        else
        {
            timer.start();
            invokeActiveTestCase();
        }
        duration = timer.getElapsedSeconds();
    }
    catch (TestFailureException &)
    {
        // This just means the test was aborted due to failure
    }
    catch (...)
    {
        // Under CATCH_CONFIG_FAST_COMPILE, unexpected exceptions under REQUIRE assertions
        // are reported without translation at the point of origin.
        if (m_shouldReportUnexpected)
        {
            AssertionReaction dummyReaction;
            handleUnexpectedInflightException(m_lastAssertionInfo, translateActiveException(), dummyReaction);
        }
    }
    Counts assertions = m_totals.assertions - prevAssertions;
    bool missingAssertions = testForMissingAssertions(assertions);

    m_testCaseTracker->close();
    handleUnfinishedSections();
    m_messages.clear();

    SectionStats testCaseSectionStats(testCaseSection, assertions, duration, missingAssertions);
    m_reporter->sectionEnded(testCaseSectionStats);
}

void RunContext::invokeActiveTestCase()
{
    FatalConditionHandler fatalConditionHandler; // Handle signals
    m_activeTestCase->invoke();
    fatalConditionHandler.reset();
}

void RunContext::handleUnfinishedSections()
{
    // If sections ended prematurely due to an exception we stored their
    // infos here so we can tear them down outside the unwind process.
    for (auto it = m_unfinishedSections.rbegin(),
              itEnd = m_unfinishedSections.rend();
         it != itEnd;
         ++it)
        sectionEnded(*it);
    m_unfinishedSections.clear();
}

void RunContext::handleExpr(
    AssertionInfo const &info,
    ITransientExpression const &expr,
    AssertionReaction &reaction)
{
    m_reporter->assertionStarting(info);

    bool negated = isFalseTest(info.resultDisposition);
    bool result = expr.getResult() != negated;

    if (result)
    {
        if (!m_includeSuccessfulResults)
        {
            assertionPassed();
        }
        else
        {
            reportExpr(info, ResultWas::Ok, &expr, negated);
        }
    }
    else
    {
        reportExpr(info, ResultWas::ExpressionFailed, &expr, negated);
        populateReaction(reaction);
    }
}
void RunContext::reportExpr(
    AssertionInfo const &info,
    ResultWas::OfType resultType,
    ITransientExpression const *expr,
    bool negated)
{

    m_lastAssertionInfo = info;
    AssertionResultData data(resultType, LazyExpression(negated));

    AssertionResult assertionResult{info, data};
    assertionResult.m_resultData.lazyExpression.m_transientExpression = expr;

    assertionEnded(assertionResult);
}

void RunContext::handleMessage(
    AssertionInfo const &info,
    ResultWas::OfType resultType,
    StringRef const &message,
    AssertionReaction &reaction)
{
    m_reporter->assertionStarting(info);

    m_lastAssertionInfo = info;

    AssertionResultData data(resultType, LazyExpression(false));
    data.message = message;
    AssertionResult assertionResult{m_lastAssertionInfo, data};
    assertionEnded(assertionResult);
    if (!assertionResult.isOk())
        populateReaction(reaction);
}
void RunContext::handleUnexpectedExceptionNotThrown(
    AssertionInfo const &info,
    AssertionReaction &reaction)
{
    handleNonExpr(info, Catch::ResultWas::DidntThrowException, reaction);
}

void RunContext::handleUnexpectedInflightException(
    AssertionInfo const &info,
    std::string const &message,
    AssertionReaction &reaction)
{
    m_lastAssertionInfo = info;

    AssertionResultData data(ResultWas::ThrewException, LazyExpression(false));
    data.message = message;
    AssertionResult assertionResult{info, data};
    assertionEnded(assertionResult);
    populateReaction(reaction);
}

void RunContext::populateReaction(AssertionReaction &reaction)
{
    reaction.shouldDebugBreak = m_config->shouldDebugBreak();
    reaction.shouldThrow = aborting() || (m_lastAssertionInfo.resultDisposition & ResultDisposition::Normal);
}

void RunContext::handleIncomplete(
    AssertionInfo const &info)
{
    m_lastAssertionInfo = info;

    AssertionResultData data(ResultWas::ThrewException, LazyExpression(false));
    data.message = "Exception translation was disabled by CATCH_CONFIG_FAST_COMPILE";
    AssertionResult assertionResult{info, data};
    assertionEnded(assertionResult);
}
void RunContext::handleNonExpr(
    AssertionInfo const &info,
    ResultWas::OfType resultType,
    AssertionReaction &reaction)
{
    m_lastAssertionInfo = info;

    AssertionResultData data(resultType, LazyExpression(false));
    AssertionResult assertionResult{info, data};
    assertionEnded(assertionResult);

    if (!assertionResult.isOk())
        populateReaction(reaction);
}

IResultCapture &getResultCapture()
{
    if (auto *capture = getCurrentContext().getResultCapture())
        return *capture;
    else
        CATCH_INTERNAL_ERROR("No result capture instance");
}
} // namespace Catch
// end catch_run_context.cpp
// start catch_section.cpp

namespace Catch
{

Section::Section(SectionInfo const &info)
    : m_info(info), m_sectionIncluded(getResultCapture().sectionStarted(m_info, m_assertions))
{
    m_timer.start();
}

Section::~Section()
{
    if (m_sectionIncluded)
    {
        SectionEndInfo endInfo(m_info, m_assertions, m_timer.getElapsedSeconds());
        if (uncaught_exceptions())
            getResultCapture().sectionEndedEarly(endInfo);
        else
            getResultCapture().sectionEnded(endInfo);
    }
}

// This indicates whether the section should be executed or not
Section::operator bool() const
{
    return m_sectionIncluded;
}

} // end namespace Catch
// end catch_section.cpp
// start catch_section_info.cpp

namespace Catch
{

SectionInfo::SectionInfo(SourceLineInfo const &_lineInfo,
                         std::string const &_name,
                         std::string const &_description)
    : name(_name), description(_description), lineInfo(_lineInfo)
{
}

SectionEndInfo::SectionEndInfo(SectionInfo const &_sectionInfo, Counts const &_prevAssertions, double _durationInSeconds)
    : sectionInfo(_sectionInfo), prevAssertions(_prevAssertions), durationInSeconds(_durationInSeconds)
{
}

} // end namespace Catch
// end catch_section_info.cpp
// start catch_session.cpp

// start catch_session.h

#include <memory>

namespace Catch
{

class Session : NonCopyable
{
  public:
    Session();
    ~Session() override;

    void showHelp() const;
    void libIdentify();

    int applyCommandLine(int argc, char const *const *argv);

    void useConfigData(ConfigData const &configData);

    int run(int argc, char *argv[]);
#if defined(CATCH_CONFIG_WCHAR) && defined(WIN32) && defined(UNICODE)
    int run(int argc, wchar_t *const argv[]);
#endif
    int run();

    clara::Parser const &cli() const;
    void cli(clara::Parser const &newParser);
    ConfigData &configData();
    Config &config();

  private:
    int runInternal();

    clara::Parser m_cli;
    ConfigData m_configData;
    std::shared_ptr<Config> m_config;
    bool m_startupExceptions = false;
};

} // end namespace Catch

// end catch_session.h
// start catch_version.h

#include <iosfwd>

namespace Catch
{

// Versioning information
struct Version
{
    Version(Version const &) = delete;
    Version &operator=(Version const &) = delete;
    Version(unsigned int _majorVersion,
            unsigned int _minorVersion,
            unsigned int _patchNumber,
            char const *const _branchName,
            unsigned int _buildNumber);

    unsigned int const majorVersion;
    unsigned int const minorVersion;
    unsigned int const patchNumber;

    // buildNumber is only used if branchName is not null
    char const *const branchName;
    unsigned int const buildNumber;

    friend std::ostream &operator<<(std::ostream &os, Version const &version);
};

Version const &libraryVersion();
} // namespace Catch

// end catch_version.h
#include <cstdlib>
#include <iomanip>

namespace Catch
{

namespace
{
const int MaxExitCode = 255;

IStreamingReporterPtr createReporter(std::string const &reporterName, IConfigPtr const &config)
{
    auto reporter = Catch::getRegistryHub().getReporterRegistry().create(reporterName, config);
    CATCH_ENFORCE(reporter, "No reporter registered with name: '" << reporterName << "'");

    return reporter;
}

IStreamingReporterPtr makeReporter(std::shared_ptr<Config> const &config)
{
    if (Catch::getRegistryHub().getReporterRegistry().getListeners().empty())
    {
        return createReporter(config->getReporterName(), config);
    }

    auto multi = std::unique_ptr<ListeningReporter>(new ListeningReporter);

    auto const &listeners = Catch::getRegistryHub().getReporterRegistry().getListeners();
    for (auto const &listener : listeners)
    {
        multi->addListener(listener->create(Catch::ReporterConfig(config)));
    }
    multi->addReporter(createReporter(config->getReporterName(), config));
    return std::move(multi);
}

Catch::Totals runTests(std::shared_ptr<Config> const &config)
{
    // FixMe: Add listeners in order first, then add reporters.

    auto reporter = makeReporter(config);

    RunContext context(config, std::move(reporter));

    Totals totals;

    context.testGroupStarting(config->name(), 1, 1);

    TestSpec testSpec = config->testSpec();

    auto const &allTestCases = getAllTestCasesSorted(*config);
    for (auto const &testCase : allTestCases)
    {
        if (!context.aborting() && matchTest(testCase, testSpec, *config))
            totals += context.runTest(testCase);
        else
            context.reporter().skipTest(testCase);
    }

    if (config->warnAboutNoTests() && totals.testCases.total() == 0)
    {
        ReusableStringStream testConfig;

        bool first = true;
        for (const auto &input : config->getTestsOrTags())
        {
            if (!first) { testConfig << ' '; }
            first = false;
            testConfig << input;
        }

        context.reporter().noMatchingTestCases(testConfig.str());
        totals.error = -1;
    }

    context.testGroupEnded(config->name(), totals, 1, 1);
    return totals;
}

void applyFilenamesAsTags(Catch::IConfig const &config)
{
    auto &tests = const_cast<std::vector<TestCase> &>(getAllTestCasesSorted(config));
    for (auto &testCase : tests)
    {
        auto tags = testCase.tags;

        std::string filename = testCase.lineInfo.file;
        auto lastSlash = filename.find_last_of("\\/");
        if (lastSlash != std::string::npos)
        {
            filename.erase(0, lastSlash);
            filename[0] = '#';
        }

        auto lastDot = filename.find_last_of('.');
        if (lastDot != std::string::npos)
        {
            filename.erase(lastDot);
        }

        tags.push_back(std::move(filename));
        setTags(testCase, tags);
    }
}

} // namespace

Session::Session()
{
    static bool alreadyInstantiated = false;
    if (alreadyInstantiated)
    {
        try
        {
            CATCH_INTERNAL_ERROR("Only one instance of Catch::Session can ever be used");
        }
        catch (...)
        {
            getMutableRegistryHub().registerStartupException();
        }
    }

    const auto &exceptions = getRegistryHub().getStartupExceptionRegistry().getExceptions();
    if (!exceptions.empty())
    {
        m_startupExceptions = true;
        Colour colourGuard(Colour::Red);
        Catch::cerr() << "Errors occurred during startup!" << '\n';
        // iterate over all exceptions and notify user
        for (const auto &ex_ptr : exceptions)
        {
            try
            {
                std::rethrow_exception(ex_ptr);
            }
            catch (std::exception const &ex)
            {
                Catch::cerr() << Column(ex.what()).indent(2) << '\n';
            }
        }
    }

    alreadyInstantiated = true;
    m_cli = makeCommandLineParser(m_configData);
}
Session::~Session()
{
    Catch::cleanUp();
}

void Session::showHelp() const
{
    Catch::cout()
        << "\nCatch v" << libraryVersion() << "\n"
        << m_cli << std::endl
        << "For more detailed usage please see the project docs\n"
        << std::endl;
}
void Session::libIdentify()
{
    Catch::cout()
        << std::left << std::setw(16) << "description: "
        << "A Catch test executable\n"
        << std::left << std::setw(16) << "category: "
        << "testframework\n"
        << std::left << std::setw(16) << "framework: "
        << "Catch Test\n"
        << std::left << std::setw(16) << "version: " << libraryVersion() << std::endl;
}

int Session::applyCommandLine(int argc, char const *const *argv)
{
    if (m_startupExceptions)
        return 1;

    auto result = m_cli.parse(clara::Args(argc, argv));
    if (!result)
    {
        Catch::cerr()
            << Colour(Colour::Red)
            << "\nError(s) in input:\n"
            << Column(result.errorMessage()).indent(2)
            << "\n\n";
        Catch::cerr() << "Run with -? for usage\n"
                      << std::endl;
        return MaxExitCode;
    }

    if (m_configData.showHelp)
        showHelp();
    if (m_configData.libIdentify)
        libIdentify();
    m_config.reset();
    return 0;
}

void Session::useConfigData(ConfigData const &configData)
{
    m_configData = configData;
    m_config.reset();
}

int Session::run(int argc, char *argv[])
{
    if (m_startupExceptions)
        return 1;
    int returnCode = applyCommandLine(argc, argv);
    if (returnCode == 0)
        returnCode = run();
    return returnCode;
}

#if defined(CATCH_CONFIG_WCHAR) && defined(WIN32) && defined(UNICODE)
int Session::run(int argc, wchar_t *const argv[])
{

    char **utf8Argv = new char *[argc];

    for (int i = 0; i < argc; ++i)
    {
        int bufSize = WideCharToMultiByte(CP_UTF8, 0, argv[i], -1, NULL, 0, NULL, NULL);

        utf8Argv[i] = new char[bufSize];

        WideCharToMultiByte(CP_UTF8, 0, argv[i], -1, utf8Argv[i], bufSize, NULL, NULL);
    }

    int returnCode = run(argc, utf8Argv);

    for (int i = 0; i < argc; ++i)
        delete[] utf8Argv[i];

    delete[] utf8Argv;

    return returnCode;
}
#endif
int Session::run()
{
    if ((m_configData.waitForKeypress & WaitForKeypress::BeforeStart) != 0)
    {
        Catch::cout() << "...waiting for enter/ return before starting" << std::endl;
        static_cast<void>(std::getchar());
    }
    int exitCode = runInternal();
    if ((m_configData.waitForKeypress & WaitForKeypress::BeforeExit) != 0)
    {
        Catch::cout() << "...waiting for enter/ return before exiting, with code: " << exitCode << std::endl;
        static_cast<void>(std::getchar());
    }
    return exitCode;
}

clara::Parser const &Session::cli() const
{
    return m_cli;
}
void Session::cli(clara::Parser const &newParser)
{
    m_cli = newParser;
}
ConfigData &Session::configData()
{
    return m_configData;
}
Config &Session::config()
{
    if (!m_config)
        m_config = std::make_shared<Config>(m_configData);
    return *m_config;
}

int Session::runInternal()
{
    if (m_startupExceptions)
        return 1;

    if (m_configData.showHelp || m_configData.libIdentify)
        return 0;

    try
    {
        config(); // Force config to be constructed

        seedRng(*m_config);

        if (m_configData.filenamesAsTags)
            applyFilenamesAsTags(*m_config);

        // Handle list request
        if (Option<std::size_t> listed = list(config()))
            return static_cast<int>(*listed);

        auto totals = runTests(m_config);
        // Note that on unices only the lower 8 bits are usually used, clamping
        // the return value to 255 prevents false negative when some multiple
        // of 256 tests has failed
        return (std::min)(MaxExitCode, (std::max)(totals.error, static_cast<int>(totals.assertions.failed)));
    }
    catch (std::exception &ex)
    {
        Catch::cerr() << ex.what() << std::endl;
        return MaxExitCode;
    }
}

} // end namespace Catch
// end catch_session.cpp
// start catch_startup_exception_registry.cpp

namespace Catch
{
void StartupExceptionRegistry::add(std::exception_ptr const &exception) noexcept
{
    try
    {
        m_exceptions.push_back(exception);
    }
    catch (...)
    {
        // If we run out of memory during start-up there's really not a lot more we can do about it
        std::terminate();
    }
}

std::vector<std::exception_ptr> const &StartupExceptionRegistry::getExceptions() const noexcept
{
    return m_exceptions;
}

} // end namespace Catch
// end catch_startup_exception_registry.cpp
// start catch_stream.cpp

#include <cstdio>
#include <fstream>
#include <iostream>
#include <memory>
#include <sstream>
#include <vector>

#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wexit-time-destructors"
#endif

namespace Catch
{

Catch::IStream::~IStream() = default;

namespace detail
{
namespace
{
template <typename WriterF, std::size_t bufferSize = 256>
class StreamBufImpl : public std::streambuf
{
    char data[bufferSize];
    WriterF m_writer;

  public:
    StreamBufImpl()
    {
        setp(data, data + sizeof(data));
    }

    ~StreamBufImpl() noexcept
    {
        StreamBufImpl::sync();
    }

  private:
    int overflow(int c) override
    {
        sync();

        if (c != EOF)
        {
            if (pbase() == epptr())
                m_writer(std::string(1, static_cast<char>(c)));
            else
                sputc(static_cast<char>(c));
        }
        return 0;
    }

    int sync() override
    {
        if (pbase() != pptr())
        {
            m_writer(std::string(pbase(), static_cast<std::string::size_type>(pptr() - pbase())));
            setp(pbase(), epptr());
        }
        return 0;
    }
};

///////////////////////////////////////////////////////////////////////////

struct OutputDebugWriter
{

    void operator()(std::string const &str)
    {
        writeToDebugConsole(str);
    }
};

///////////////////////////////////////////////////////////////////////////

class FileStream : public IStream
{
    mutable std::ofstream m_ofs;

  public:
    FileStream(StringRef filename)
    {
        m_ofs.open(filename.c_str());
        CATCH_ENFORCE(!m_ofs.fail(), "Unable to open file: '" << filename << "'");
    }
    ~FileStream() override = default;

  public: // IStream
    std::ostream &stream() const override
    {
        return m_ofs;
    }
};

///////////////////////////////////////////////////////////////////////////

class CoutStream : public IStream
{
    mutable std::ostream m_os;

  public:
    // Store the streambuf from cout up-front because
    // cout may get redirected when running tests
    CoutStream()
        : m_os(Catch::cout().rdbuf()) {}
    ~CoutStream() override = default;

  public: // IStream
    std::ostream &stream() const override { return m_os; }
};

///////////////////////////////////////////////////////////////////////////

class DebugOutStream : public IStream
{
    std::unique_ptr<StreamBufImpl<OutputDebugWriter>> m_streamBuf;
    mutable std::ostream m_os;

  public:
    DebugOutStream()
        : m_streamBuf(new StreamBufImpl<OutputDebugWriter>()), m_os(m_streamBuf.get())
    {
    }

    ~DebugOutStream() override = default;

  public: // IStream
    std::ostream &stream() const override { return m_os; }
};

} // namespace
} // namespace detail

///////////////////////////////////////////////////////////////////////////

auto makeStream(StringRef const &filename) -> IStream const *
{
    if (filename.empty())
        return new detail::CoutStream();
    else if (filename[0] == '%')
    {
        if (filename == "%debug")
            return new detail::DebugOutStream();
        else
            CATCH_ERROR("Unrecognised stream: '" << filename << "'");
    }
    else
        return new detail::FileStream(filename);
}

// This class encapsulates the idea of a pool of ostringstreams that can be reused.
struct StringStreams
{
    std::vector<std::unique_ptr<std::ostringstream>> m_streams;
    std::vector<std::size_t> m_unused;
    std::ostringstream m_referenceStream; // Used for copy state/ flags from
    static StringStreams *s_instance;

    auto add() -> std::size_t
    {
        if (m_unused.empty())
        {
            m_streams.push_back(std::unique_ptr<std::ostringstream>(new std::ostringstream));
            return m_streams.size() - 1;
        }
        else
        {
            auto index = m_unused.back();
            m_unused.pop_back();
            return index;
        }
    }

    void release(std::size_t index)
    {
        m_streams[index]->copyfmt(m_referenceStream); // Restore initial flags and other state
        m_unused.push_back(index);
    }

    // !TBD: put in TLS
    static auto instance() -> StringStreams &
    {
        if (!s_instance)
            s_instance = new StringStreams();
        return *s_instance;
    }
    static void cleanup()
    {
        delete s_instance;
        s_instance = nullptr;
    }
};

StringStreams *StringStreams::s_instance = nullptr;

void ReusableStringStream::cleanup()
{
    StringStreams::cleanup();
}

ReusableStringStream::ReusableStringStream()
    : m_index(StringStreams::instance().add()), m_oss(StringStreams::instance().m_streams[m_index].get())
{
}

ReusableStringStream::~ReusableStringStream()
{
    static_cast<std::ostringstream *>(m_oss)->str("");
    m_oss->clear();
    StringStreams::instance().release(m_index);
}

auto ReusableStringStream::str() const -> std::string
{
    return static_cast<std::ostringstream *>(m_oss)->str();
}

///////////////////////////////////////////////////////////////////////////

#ifndef CATCH_CONFIG_NOSTDOUT // If you #define this you must implement these functions
std::ostream &cout()
{
    return std::cout;
}
std::ostream &cerr() { return std::cerr; }
std::ostream &clog() { return std::clog; }
#endif
} // namespace Catch

#if defined(__clang__)
#pragma clang diagnostic pop
#endif
// end catch_stream.cpp
// start catch_string_manip.cpp

#include <algorithm>
#include <cctype>
#include <cstring>
#include <ostream>

namespace Catch
{

bool startsWith(std::string const &s, std::string const &prefix)
{
    return s.size() >= prefix.size() && std::equal(prefix.begin(), prefix.end(), s.begin());
}
bool startsWith(std::string const &s, char prefix)
{
    return !s.empty() && s[0] == prefix;
}
bool endsWith(std::string const &s, std::string const &suffix)
{
    return s.size() >= suffix.size() && std::equal(suffix.rbegin(), suffix.rend(), s.rbegin());
}
bool endsWith(std::string const &s, char suffix)
{
    return !s.empty() && s[s.size() - 1] == suffix;
}
bool contains(std::string const &s, std::string const &infix)
{
    return s.find(infix) != std::string::npos;
}
char toLowerCh(char c)
{
    return static_cast<char>(std::tolower(c));
}
void toLowerInPlace(std::string &s)
{
    std::transform(s.begin(), s.end(), s.begin(), toLowerCh);
}
std::string toLower(std::string const &s)
{
    std::string lc = s;
    toLowerInPlace(lc);
    return lc;
}
std::string trim(std::string const &str)
{
    static char const *whitespaceChars = "\n\r\t ";
    std::string::size_type start = str.find_first_not_of(whitespaceChars);
    std::string::size_type end = str.find_last_not_of(whitespaceChars);

    return start != std::string::npos ? str.substr(start, 1 + end - start) : std::string();
}

bool replaceInPlace(std::string &str, std::string const &replaceThis, std::string const &withThis)
{
    bool replaced = false;
    std::size_t i = str.find(replaceThis);
    while (i != std::string::npos)
    {
        replaced = true;
        str = str.substr(0, i) + withThis + str.substr(i + replaceThis.size());
        if (i < str.size() - withThis.size())
            i = str.find(replaceThis, i + withThis.size());
        else
            i = std::string::npos;
    }
    return replaced;
}

pluralise::pluralise(std::size_t count, std::string const &label)
    : m_count(count), m_label(label)
{
}

std::ostream &operator<<(std::ostream &os, pluralise const &pluraliser)
{
    os << pluraliser.m_count << ' ' << pluraliser.m_label;
    if (pluraliser.m_count != 1)
        os << 's';
    return os;
}

} // namespace Catch
// end catch_string_manip.cpp
// start catch_stringref.cpp

#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wexit-time-destructors"
#endif

#include <cstdint>
#include <cstring>
#include <ostream>

namespace
{
const uint32_t byte_2_lead = 0xC0;
const uint32_t byte_3_lead = 0xE0;
const uint32_t byte_4_lead = 0xF0;
} // namespace

namespace Catch
{
StringRef::StringRef(char const *rawChars) noexcept
    : StringRef(rawChars, static_cast<StringRef::size_type>(std::strlen(rawChars)))
{
}

StringRef::operator std::string() const
{
    return std::string(m_start, m_size);
}

void StringRef::swap(StringRef &other) noexcept
{
    std::swap(m_start, other.m_start);
    std::swap(m_size, other.m_size);
    std::swap(m_data, other.m_data);
}

auto StringRef::c_str() const -> char const *
{
    if (isSubstring())
        const_cast<StringRef *>(this)->takeOwnership();
    return m_start;
}
auto StringRef::currentData() const noexcept -> char const *
{
    return m_start;
}

auto StringRef::isOwned() const noexcept -> bool
{
    return m_data != nullptr;
}
auto StringRef::isSubstring() const noexcept -> bool
{
    return m_start[m_size] != '\0';
}

void StringRef::takeOwnership()
{
    if (!isOwned())
    {
        m_data = new char[m_size + 1];
        memcpy(m_data, m_start, m_size);
        m_data[m_size] = '\0';
        m_start = m_data;
    }
}
auto StringRef::substr(size_type start, size_type size) const noexcept -> StringRef
{
    if (start < m_size)
        return StringRef(m_start + start, size);
    else
        return StringRef();
}
auto StringRef::operator==(StringRef const &other) const noexcept -> bool
{
    return size() == other.size() && (std::strncmp(m_start, other.m_start, size()) == 0);
}
auto StringRef::operator!=(StringRef const &other) const noexcept -> bool
{
    return !operator==(other);
}

auto StringRef::operator[](size_type index) const noexcept -> char
{
    return m_start[index];
}

auto StringRef::numberOfCharacters() const noexcept -> size_type
{
    size_type noChars = m_size;
    // Make adjustments for uft encodings
    for (size_type i = 0; i < m_size; ++i)
    {
        char c = m_start[i];
        if ((c & byte_2_lead) == byte_2_lead)
        {
            noChars--;
            if ((c & byte_3_lead) == byte_3_lead)
                noChars--;
            if ((c & byte_4_lead) == byte_4_lead)
                noChars--;
        }
    }
    return noChars;
}

auto operator+(StringRef const &lhs, StringRef const &rhs) -> std::string
{
    std::string str;
    str.reserve(lhs.size() + rhs.size());
    str += lhs;
    str += rhs;
    return str;
}
auto operator+(StringRef const &lhs, const char *rhs) -> std::string
{
    return std::string(lhs) + std::string(rhs);
}
auto operator+(char const *lhs, StringRef const &rhs) -> std::string
{
    return std::string(lhs) + std::string(rhs);
}

auto operator<<(std::ostream &os, StringRef const &str) -> std::ostream &
{
    return os.write(str.currentData(), str.size());
}

auto operator+=(std::string &lhs, StringRef const &rhs) -> std::string &
{
    lhs.append(rhs.currentData(), rhs.size());
    return lhs;
}

} // namespace Catch

#if defined(__clang__)
#pragma clang diagnostic pop
#endif
// end catch_stringref.cpp
// start catch_tag_alias.cpp

namespace Catch
{
TagAlias::TagAlias(std::string const &_tag, SourceLineInfo _lineInfo)
    : tag(_tag), lineInfo(_lineInfo) {}
} // namespace Catch
// end catch_tag_alias.cpp
// start catch_tag_alias_autoregistrar.cpp

namespace Catch
{

RegistrarForTagAliases::RegistrarForTagAliases(char const *alias, char const *tag, SourceLineInfo const &lineInfo)
{
    try
    {
        getMutableRegistryHub().registerTagAlias(alias, tag, lineInfo);
    }
    catch (...)
    {
        // Do not throw when constructing global objects, instead register the exception to be processed later
        getMutableRegistryHub().registerStartupException();
    }
}

} // namespace Catch
// end catch_tag_alias_autoregistrar.cpp
// start catch_tag_alias_registry.cpp

#include <sstream>

namespace Catch
{

TagAliasRegistry::~TagAliasRegistry() {}

TagAlias const *TagAliasRegistry::find(std::string const &alias) const
{
    auto it = m_registry.find(alias);
    if (it != m_registry.end())
        return &(it->second);
    else
        return nullptr;
}

std::string TagAliasRegistry::expandAliases(std::string const &unexpandedTestSpec) const
{
    std::string expandedTestSpec = unexpandedTestSpec;
    for (auto const &registryKvp : m_registry)
    {
        std::size_t pos = expandedTestSpec.find(registryKvp.first);
        if (pos != std::string::npos)
        {
            expandedTestSpec = expandedTestSpec.substr(0, pos) + registryKvp.second.tag + expandedTestSpec.substr(pos + registryKvp.first.size());
        }
    }
    return expandedTestSpec;
}

void TagAliasRegistry::add(std::string const &alias, std::string const &tag, SourceLineInfo const &lineInfo)
{
    CATCH_ENFORCE(startsWith(alias, "[@") && endsWith(alias, ']'),
                  "error: tag alias, '" << alias << "' is not of the form [@alias name].\n"
                                        << lineInfo);

    CATCH_ENFORCE(m_registry.insert(std::make_pair(alias, TagAlias(tag, lineInfo))).second,
                  "error: tag alias, '" << alias << "' already registered.\n"
                                        << "\tFirst seen at: " << find(alias)->lineInfo << "\n"
                                        << "\tRedefined at: " << lineInfo);
}

ITagAliasRegistry::~ITagAliasRegistry() {}

ITagAliasRegistry const &ITagAliasRegistry::get()
{
    return getRegistryHub().getTagAliasRegistry();
}

} // end namespace Catch
// end catch_tag_alias_registry.cpp
// start catch_test_case_info.cpp

#include <algorithm>
#include <cctype>
#include <exception>
#include <sstream>

namespace Catch
{

TestCaseInfo::SpecialProperties parseSpecialTag(std::string const &tag)
{
    if (startsWith(tag, '.') || tag == "!hide")
        return TestCaseInfo::IsHidden;
    else if (tag == "!throws")
        return TestCaseInfo::Throws;
    else if (tag == "!shouldfail")
        return TestCaseInfo::ShouldFail;
    else if (tag == "!mayfail")
        return TestCaseInfo::MayFail;
    else if (tag == "!nonportable")
        return TestCaseInfo::NonPortable;
    else if (tag == "!benchmark")
        return static_cast<TestCaseInfo::SpecialProperties>(TestCaseInfo::Benchmark | TestCaseInfo::IsHidden);
    else
        return TestCaseInfo::None;
}
bool isReservedTag(std::string const &tag)
{
    return parseSpecialTag(tag) == TestCaseInfo::None && tag.size() > 0 && !std::isalnum(static_cast<unsigned char>(tag[0]));
}
void enforceNotReservedTag(std::string const &tag, SourceLineInfo const &_lineInfo)
{
    CATCH_ENFORCE(!isReservedTag(tag),
                  "Tag name: [" << tag << "] is not allowed.\n"
                                << "Tag names starting with non alpha-numeric characters are reserved\n"
                                << _lineInfo);
}

TestCase makeTestCase(ITestInvoker *_testCase,
                      std::string const &_className,
                      NameAndTags const &nameAndTags,
                      SourceLineInfo const &_lineInfo)
{
    bool isHidden = false;

    // Parse out tags
    std::vector<std::string> tags;
    std::string desc, tag;
    bool inTag = false;
    std::string _descOrTags = nameAndTags.tags;
    for (char c : _descOrTags)
    {
        if (!inTag)
        {
            if (c == '[')
                inTag = true;
            else
                desc += c;
        }
        else
        {
            if (c == ']')
            {
                TestCaseInfo::SpecialProperties prop = parseSpecialTag(tag);
                if ((prop & TestCaseInfo::IsHidden) != 0)
                    isHidden = true;
                else if (prop == TestCaseInfo::None)
                    enforceNotReservedTag(tag, _lineInfo);

                tags.push_back(tag);
                tag.clear();
                inTag = false;
            }
            else
                tag += c;
        }
    }
    if (isHidden)
    {
        tags.push_back(".");
    }

    TestCaseInfo info(nameAndTags.name, _className, desc, tags, _lineInfo);
    return TestCase(_testCase, std::move(info));
}

void setTags(TestCaseInfo &testCaseInfo, std::vector<std::string> tags)
{
    std::sort(begin(tags), end(tags));
    tags.erase(std::unique(begin(tags), end(tags)), end(tags));
    testCaseInfo.lcaseTags.clear();

    for (auto const &tag : tags)
    {
        std::string lcaseTag = toLower(tag);
        testCaseInfo.properties = static_cast<TestCaseInfo::SpecialProperties>(testCaseInfo.properties | parseSpecialTag(lcaseTag));
        testCaseInfo.lcaseTags.push_back(lcaseTag);
    }
    testCaseInfo.tags = std::move(tags);
}

TestCaseInfo::TestCaseInfo(std::string const &_name,
                           std::string const &_className,
                           std::string const &_description,
                           std::vector<std::string> const &_tags,
                           SourceLineInfo const &_lineInfo)
    : name(_name), className(_className), description(_description), lineInfo(_lineInfo), properties(None)
{
    setTags(*this, _tags);
}

bool TestCaseInfo::isHidden() const
{
    return (properties & IsHidden) != 0;
}
bool TestCaseInfo::throws() const
{
    return (properties & Throws) != 0;
}
bool TestCaseInfo::okToFail() const
{
    return (properties & (ShouldFail | MayFail)) != 0;
}
bool TestCaseInfo::expectedToFail() const
{
    return (properties & (ShouldFail)) != 0;
}

std::string TestCaseInfo::tagsAsString() const
{
    std::string ret;
    // '[' and ']' per tag
    std::size_t full_size = 2 * tags.size();
    for (const auto &tag : tags)
    {
        full_size += tag.size();
    }
    ret.reserve(full_size);
    for (const auto &tag : tags)
    {
        ret.push_back('[');
        ret.append(tag);
        ret.push_back(']');
    }

    return ret;
}

TestCase::TestCase(ITestInvoker *testCase, TestCaseInfo &&info)
    : TestCaseInfo(std::move(info)), test(testCase) {}

TestCase TestCase::withName(std::string const &_newName) const
{
    TestCase other(*this);
    other.name = _newName;
    return other;
}

void TestCase::invoke() const
{
    test->invoke();
}

bool TestCase::operator==(TestCase const &other) const
{
    return test.get() == other.test.get() && name == other.name && className == other.className;
}

bool TestCase::operator<(TestCase const &other) const
{
    return name < other.name;
}

TestCaseInfo const &TestCase::getTestCaseInfo() const
{
    return *this;
}

} // end namespace Catch
// end catch_test_case_info.cpp
// start catch_test_case_registry_impl.cpp

#include <sstream>

namespace Catch
{

std::vector<TestCase> sortTests(IConfig const &config, std::vector<TestCase> const &unsortedTestCases)
{

    std::vector<TestCase> sorted = unsortedTestCases;

    switch (config.runOrder())
    {
        case RunTests::InLexicographicalOrder:
            std::sort(sorted.begin(), sorted.end());
            break;
        case RunTests::InRandomOrder:
            seedRng(config);
            RandomNumberGenerator::shuffle(sorted);
            break;
        case RunTests::InDeclarationOrder:
            // already in declaration order
            break;
    }
    return sorted;
}
bool matchTest(TestCase const &testCase, TestSpec const &testSpec, IConfig const &config)
{
    return testSpec.matches(testCase) && (config.allowThrows() || !testCase.throws());
}

void enforceNoDuplicateTestCases(std::vector<TestCase> const &functions)
{
    std::set<TestCase> seenFunctions;
    for (auto const &function : functions)
    {
        auto prev = seenFunctions.insert(function);
        CATCH_ENFORCE(prev.second,
                      "error: TEST_CASE( \"" << function.name << "\" ) already defined.\n"
                                             << "\tFirst seen at " << prev.first->getTestCaseInfo().lineInfo << "\n"
                                             << "\tRedefined at " << function.getTestCaseInfo().lineInfo);
    }
}

std::vector<TestCase> filterTests(std::vector<TestCase> const &testCases, TestSpec const &testSpec, IConfig const &config)
{
    std::vector<TestCase> filtered;
    filtered.reserve(testCases.size());
    for (auto const &testCase : testCases)
        if (matchTest(testCase, testSpec, config))
            filtered.push_back(testCase);
    return filtered;
}
std::vector<TestCase> const &getAllTestCasesSorted(IConfig const &config)
{
    return getRegistryHub().getTestCaseRegistry().getAllTestsSorted(config);
}

void TestRegistry::registerTest(TestCase const &testCase)
{
    std::string name = testCase.getTestCaseInfo().name;
    if (name.empty())
    {
        ReusableStringStream rss;
        rss << "Anonymous test case " << ++m_unnamedCount;
        return registerTest(testCase.withName(rss.str()));
    }
    m_functions.push_back(testCase);
}

std::vector<TestCase> const &TestRegistry::getAllTests() const
{
    return m_functions;
}
std::vector<TestCase> const &TestRegistry::getAllTestsSorted(IConfig const &config) const
{
    if (m_sortedFunctions.empty())
        enforceNoDuplicateTestCases(m_functions);

    if (m_currentSortOrder != config.runOrder() || m_sortedFunctions.empty())
    {
        m_sortedFunctions = sortTests(config, m_functions);
        m_currentSortOrder = config.runOrder();
    }
    return m_sortedFunctions;
}

///////////////////////////////////////////////////////////////////////////
TestInvokerAsFunction::TestInvokerAsFunction(void (*testAsFunction)()) noexcept
    : m_testAsFunction(testAsFunction) {}

void TestInvokerAsFunction::invoke() const
{
    m_testAsFunction();
}

std::string extractClassName(StringRef const &classOrQualifiedMethodName)
{
    std::string className = classOrQualifiedMethodName;
    if (startsWith(className, '&'))
    {
        std::size_t lastColons = className.rfind("::");
        std::size_t penultimateColons = className.rfind("::", lastColons - 1);
        if (penultimateColons == std::string::npos)
            penultimateColons = 1;
        className = className.substr(penultimateColons, lastColons - penultimateColons);
    }
    return className;
}

} // end namespace Catch
// end catch_test_case_registry_impl.cpp
// start catch_test_case_tracker.cpp

#include <algorithm>
#include <cassert>
#include <memory>
#include <sstream>
#include <stdexcept>

#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wexit-time-destructors"
#endif

namespace Catch
{
namespace TestCaseTracking
{

NameAndLocation::NameAndLocation(std::string const &_name, SourceLineInfo const &_location)
    : name(_name), location(_location)
{
}

ITracker::~ITracker() = default;

TrackerContext &TrackerContext::instance()
{
    static TrackerContext s_instance;
    return s_instance;
}

ITracker &TrackerContext::startRun()
{
    m_rootTracker = std::make_shared<SectionTracker>(NameAndLocation("{root}", CATCH_INTERNAL_LINEINFO), *this, nullptr);
    m_currentTracker = nullptr;
    m_runState = Executing;
    return *m_rootTracker;
}

void TrackerContext::endRun()
{
    m_rootTracker.reset();
    m_currentTracker = nullptr;
    m_runState = NotStarted;
}

void TrackerContext::startCycle()
{
    m_currentTracker = m_rootTracker.get();
    m_runState = Executing;
}
void TrackerContext::completeCycle()
{
    m_runState = CompletedCycle;
}

bool TrackerContext::completedCycle() const
{
    return m_runState == CompletedCycle;
}
ITracker &TrackerContext::currentTracker()
{
    return *m_currentTracker;
}
void TrackerContext::setCurrentTracker(ITracker *tracker)
{
    m_currentTracker = tracker;
}

TrackerBase::TrackerHasName::TrackerHasName(NameAndLocation const &nameAndLocation)
    : m_nameAndLocation(nameAndLocation) {}
bool TrackerBase::TrackerHasName::operator()(ITrackerPtr const &tracker) const
{
    return tracker->nameAndLocation().name == m_nameAndLocation.name && tracker->nameAndLocation().location == m_nameAndLocation.location;
}

TrackerBase::TrackerBase(NameAndLocation const &nameAndLocation, TrackerContext &ctx, ITracker *parent)
    : m_nameAndLocation(nameAndLocation), m_ctx(ctx), m_parent(parent)
{
}

NameAndLocation const &TrackerBase::nameAndLocation() const
{
    return m_nameAndLocation;
}
bool TrackerBase::isComplete() const
{
    return m_runState == CompletedSuccessfully || m_runState == Failed;
}
bool TrackerBase::isSuccessfullyCompleted() const
{
    return m_runState == CompletedSuccessfully;
}
bool TrackerBase::isOpen() const
{
    return m_runState != NotStarted && !isComplete();
}
bool TrackerBase::hasChildren() const
{
    return !m_children.empty();
}

void TrackerBase::addChild(ITrackerPtr const &child)
{
    m_children.push_back(child);
}

ITrackerPtr TrackerBase::findChild(NameAndLocation const &nameAndLocation)
{
    auto it = std::find_if(m_children.begin(), m_children.end(), TrackerHasName(nameAndLocation));
    return (it != m_children.end()) ? *it : nullptr;
}
ITracker &TrackerBase::parent()
{
    assert(m_parent); // Should always be non-null except for root
    return *m_parent;
}

void TrackerBase::openChild()
{
    if (m_runState != ExecutingChildren)
    {
        m_runState = ExecutingChildren;
        if (m_parent)
            m_parent->openChild();
    }
}

bool TrackerBase::isSectionTracker() const { return false; }
bool TrackerBase::isIndexTracker() const { return false; }

void TrackerBase::open()
{
    m_runState = Executing;
    moveToThis();
    if (m_parent)
        m_parent->openChild();
}

void TrackerBase::close()
{

    // Close any still open children (e.g. generators)
    while (&m_ctx.currentTracker() != this)
        m_ctx.currentTracker().close();

    switch (m_runState)
    {
        case NeedsAnotherRun:
            break;

        case Executing:
            m_runState = CompletedSuccessfully;
            break;
        case ExecutingChildren:
            if (m_children.empty() || m_children.back()->isComplete())
                m_runState = CompletedSuccessfully;
            break;

        case NotStarted:
        case CompletedSuccessfully:
        case Failed:
            CATCH_INTERNAL_ERROR("Illogical state: " << m_runState);

        default:
            CATCH_INTERNAL_ERROR("Unknown state: " << m_runState);
    }
    moveToParent();
    m_ctx.completeCycle();
}
void TrackerBase::fail()
{
    m_runState = Failed;
    if (m_parent)
        m_parent->markAsNeedingAnotherRun();
    moveToParent();
    m_ctx.completeCycle();
}
void TrackerBase::markAsNeedingAnotherRun()
{
    m_runState = NeedsAnotherRun;
}

void TrackerBase::moveToParent()
{
    assert(m_parent);
    m_ctx.setCurrentTracker(m_parent);
}
void TrackerBase::moveToThis()
{
    m_ctx.setCurrentTracker(this);
}

SectionTracker::SectionTracker(NameAndLocation const &nameAndLocation, TrackerContext &ctx, ITracker *parent)
    : TrackerBase(nameAndLocation, ctx, parent)
{
    if (parent)
    {
        while (!parent->isSectionTracker())
            parent = &parent->parent();

        SectionTracker &parentSection = static_cast<SectionTracker &>(*parent);
        addNextFilters(parentSection.m_filters);
    }
}

bool SectionTracker::isSectionTracker() const { return true; }

SectionTracker &SectionTracker::acquire(TrackerContext &ctx, NameAndLocation const &nameAndLocation)
{
    std::shared_ptr<SectionTracker> section;

    ITracker &currentTracker = ctx.currentTracker();
    if (ITrackerPtr childTracker = currentTracker.findChild(nameAndLocation))
    {
        assert(childTracker);
        assert(childTracker->isSectionTracker());
        section = std::static_pointer_cast<SectionTracker>(childTracker);
    }
    else
    {
        section = std::make_shared<SectionTracker>(nameAndLocation, ctx, &currentTracker);
        currentTracker.addChild(section);
    }
    if (!ctx.completedCycle())
        section->tryOpen();
    return *section;
}

void SectionTracker::tryOpen()
{
    if (!isComplete() && (m_filters.empty() || m_filters[0].empty() || m_filters[0] == m_nameAndLocation.name))
        open();
}

void SectionTracker::addInitialFilters(std::vector<std::string> const &filters)
{
    if (!filters.empty())
    {
        m_filters.push_back(""); // Root - should never be consulted
        m_filters.push_back(""); // Test Case - not a section filter
        m_filters.insert(m_filters.end(), filters.begin(), filters.end());
    }
}
void SectionTracker::addNextFilters(std::vector<std::string> const &filters)
{
    if (filters.size() > 1)
        m_filters.insert(m_filters.end(), ++filters.begin(), filters.end());
}

IndexTracker::IndexTracker(NameAndLocation const &nameAndLocation, TrackerContext &ctx, ITracker *parent, int size)
    : TrackerBase(nameAndLocation, ctx, parent), m_size(size)
{
}

bool IndexTracker::isIndexTracker() const { return true; }

IndexTracker &IndexTracker::acquire(TrackerContext &ctx, NameAndLocation const &nameAndLocation, int size)
{
    std::shared_ptr<IndexTracker> tracker;

    ITracker &currentTracker = ctx.currentTracker();
    if (ITrackerPtr childTracker = currentTracker.findChild(nameAndLocation))
    {
        assert(childTracker);
        assert(childTracker->isIndexTracker());
        tracker = std::static_pointer_cast<IndexTracker>(childTracker);
    }
    else
    {
        tracker = std::make_shared<IndexTracker>(nameAndLocation, ctx, &currentTracker, size);
        currentTracker.addChild(tracker);
    }

    if (!ctx.completedCycle() && !tracker->isComplete())
    {
        if (tracker->m_runState != ExecutingChildren && tracker->m_runState != NeedsAnotherRun)
            tracker->moveNext();
        tracker->open();
    }

    return *tracker;
}

int IndexTracker::index() const { return m_index; }

void IndexTracker::moveNext()
{
    m_index++;
    m_children.clear();
}

void IndexTracker::close()
{
    TrackerBase::close();
    if (m_runState == CompletedSuccessfully && m_index < m_size - 1)
        m_runState = Executing;
}

} // namespace TestCaseTracking

using TestCaseTracking::IndexTracker;
using TestCaseTracking::ITracker;
using TestCaseTracking::SectionTracker;
using TestCaseTracking::TrackerContext;

} // namespace Catch

#if defined(__clang__)
#pragma clang diagnostic pop
#endif
// end catch_test_case_tracker.cpp
// start catch_test_registry.cpp

namespace Catch
{

auto makeTestInvoker(void (*testAsFunction)()) noexcept -> ITestInvoker *
{
    return new (std::nothrow) TestInvokerAsFunction(testAsFunction);
}

NameAndTags::NameAndTags(StringRef const &name_, StringRef const &tags_) noexcept
    : name(name_), tags(tags_) {}

AutoReg::AutoReg(ITestInvoker *invoker, SourceLineInfo const &lineInfo, StringRef const &classOrMethod, NameAndTags const &nameAndTags) noexcept
{
    try
    {
        getMutableRegistryHub()
            .registerTest(
                makeTestCase(
                    invoker,
                    extractClassName(classOrMethod),
                    nameAndTags,
                    lineInfo));
    }
    catch (...)
    {
        // Do not throw when constructing global objects, instead register the exception to be processed later
        getMutableRegistryHub().registerStartupException();
    }
}

AutoReg::~AutoReg() = default;
} // namespace Catch
// end catch_test_registry.cpp
// start catch_test_spec.cpp

#include <algorithm>
#include <memory>
#include <string>
#include <vector>

namespace Catch
{

TestSpec::Pattern::~Pattern() = default;
TestSpec::NamePattern::~NamePattern() = default;
TestSpec::TagPattern::~TagPattern() = default;
TestSpec::ExcludedPattern::~ExcludedPattern() = default;

TestSpec::NamePattern::NamePattern(std::string const &name)
    : m_wildcardPattern(toLower(name), CaseSensitive::No)
{
}
bool TestSpec::NamePattern::matches(TestCaseInfo const &testCase) const
{
    return m_wildcardPattern.matches(toLower(testCase.name));
}

TestSpec::TagPattern::TagPattern(std::string const &tag)
    : m_tag(toLower(tag)) {}
bool TestSpec::TagPattern::matches(TestCaseInfo const &testCase) const
{
    return std::find(begin(testCase.lcaseTags),
                     end(testCase.lcaseTags),
                     m_tag)
           != end(testCase.lcaseTags);
}

TestSpec::ExcludedPattern::ExcludedPattern(PatternPtr const &underlyingPattern)
    : m_underlyingPattern(underlyingPattern) {}
bool TestSpec::ExcludedPattern::matches(TestCaseInfo const &testCase) const { return !m_underlyingPattern->matches(testCase); }

bool TestSpec::Filter::matches(TestCaseInfo const &testCase) const
{
    // All patterns in a filter must match for the filter to be a match
    for (auto const &pattern : m_patterns)
    {
        if (!pattern->matches(testCase))
            return false;
    }
    return true;
}

bool TestSpec::hasFilters() const
{
    return !m_filters.empty();
}
bool TestSpec::matches(TestCaseInfo const &testCase) const
{
    // A TestSpec matches if any filter matches
    for (auto const &filter : m_filters)
        if (filter.matches(testCase))
            return true;
    return false;
}
} // namespace Catch
// end catch_test_spec.cpp
// start catch_test_spec_parser.cpp

namespace Catch
{

TestSpecParser::TestSpecParser(ITagAliasRegistry const &tagAliases)
    : m_tagAliases(&tagAliases) {}

TestSpecParser &TestSpecParser::parse(std::string const &arg)
{
    m_mode = None;
    m_exclusion = false;
    m_start = std::string::npos;
    m_arg = m_tagAliases->expandAliases(arg);
    m_escapeChars.clear();
    for (m_pos = 0; m_pos < m_arg.size(); ++m_pos)
        visitChar(m_arg[m_pos]);
    if (m_mode == Name)
        addPattern<TestSpec::NamePattern>();
    return *this;
}
TestSpec TestSpecParser::testSpec()
{
    addFilter();
    return m_testSpec;
}

void TestSpecParser::visitChar(char c)
{
    if (m_mode == None)
    {
        switch (c)
        {
            case ' ': return;
            case '~': m_exclusion = true; return;
            case '[': return startNewMode(Tag, ++m_pos);
            case '"': return startNewMode(QuotedName, ++m_pos);
            case '\\': return escape();
            default: startNewMode(Name, m_pos); break;
        }
    }
    if (m_mode == Name)
    {
        if (c == ',')
        {
            addPattern<TestSpec::NamePattern>();
            addFilter();
        }
        else if (c == '[')
        {
            if (subString() == "exclude:")
                m_exclusion = true;
            else
                addPattern<TestSpec::NamePattern>();
            startNewMode(Tag, ++m_pos);
        }
        else if (c == '\\')
            escape();
    }
    else if (m_mode == EscapedName)
        m_mode = Name;
    else if (m_mode == QuotedName && c == '"')
        addPattern<TestSpec::NamePattern>();
    else if (m_mode == Tag && c == ']')
        addPattern<TestSpec::TagPattern>();
}
void TestSpecParser::startNewMode(Mode mode, std::size_t start)
{
    m_mode = mode;
    m_start = start;
}
void TestSpecParser::escape()
{
    if (m_mode == None)
        m_start = m_pos;
    m_mode = EscapedName;
    m_escapeChars.push_back(m_pos);
}
std::string TestSpecParser::subString() const { return m_arg.substr(m_start, m_pos - m_start); }

void TestSpecParser::addFilter()
{
    if (!m_currentFilter.m_patterns.empty())
    {
        m_testSpec.m_filters.push_back(m_currentFilter);
        m_currentFilter = TestSpec::Filter();
    }
}

TestSpec parseTestSpec(std::string const &arg)
{
    return TestSpecParser(ITagAliasRegistry::get()).parse(arg).testSpec();
}

} // namespace Catch
// end catch_test_spec_parser.cpp
// start catch_timer.cpp

#include <chrono>

static const uint64_t nanosecondsInSecond = 1000000000;

namespace Catch
{

auto getCurrentNanosecondsSinceEpoch() -> uint64_t
{
    return std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::high_resolution_clock::now().time_since_epoch()).count();
}

auto estimateClockResolution() -> uint64_t
{
    uint64_t sum = 0;
    static const uint64_t iterations = 1000000;

    auto startTime = getCurrentNanosecondsSinceEpoch();

    for (std::size_t i = 0; i < iterations; ++i)
    {

        uint64_t ticks;
        uint64_t baseTicks = getCurrentNanosecondsSinceEpoch();
        do
        {
            ticks = getCurrentNanosecondsSinceEpoch();
        } while (ticks == baseTicks);

        auto delta = ticks - baseTicks;
        sum += delta;

        // If we have been calibrating for over 3 seconds -- the clock
        // is terrible and we should move on.
        // TBD: How to signal that the measured resolution is probably wrong?
        if (ticks > startTime + 3 * nanosecondsInSecond)
        {
            return sum / i;
        }
    }

    // We're just taking the mean, here. To do better we could take the std. dev and exclude outliers
    // - and potentially do more iterations if there's a high variance.
    return sum / iterations;
}
auto getEstimatedClockResolution() -> uint64_t
{
    static auto s_resolution = estimateClockResolution();
    return s_resolution;
}

void Timer::start()
{
    m_nanoseconds = getCurrentNanosecondsSinceEpoch();
}
auto Timer::getElapsedNanoseconds() const -> uint64_t
{
    return getCurrentNanosecondsSinceEpoch() - m_nanoseconds;
}
auto Timer::getElapsedMicroseconds() const -> uint64_t
{
    return getElapsedNanoseconds() / 1000;
}
auto Timer::getElapsedMilliseconds() const -> unsigned int
{
    return static_cast<unsigned int>(getElapsedMicroseconds() / 1000);
}
auto Timer::getElapsedSeconds() const -> double
{
    return getElapsedMicroseconds() / 1000000.0;
}

} // namespace Catch
// end catch_timer.cpp
// start catch_tostring.cpp

#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wexit-time-destructors"
#pragma clang diagnostic ignored "-Wglobal-constructors"
#endif

// Enable specific decls locally
#if !defined(CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER)
#define CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER
#endif

#include <cmath>
#include <iomanip>

namespace Catch
{

namespace Detail
{

const std::string unprintableString = "{?}";

namespace
{
const int hexThreshold = 255;

struct Endianness
{
    enum Arch
    {
        Big,
        Little
    };

    static Arch which()
    {
        union _ {
            int asInt;
            char asChar[sizeof(int)];
        } u;

        u.asInt = 1;
        return (u.asChar[sizeof(int) - 1] == 1) ? Big : Little;
    }
};
} // namespace

std::string rawMemoryToString(const void *object, std::size_t size)
{
    // Reverse order for little endian architectures
    int i = 0, end = static_cast<int>(size), inc = 1;
    if (Endianness::which() == Endianness::Little)
    {
        i = end - 1;
        end = inc = -1;
    }

    unsigned char const *bytes = static_cast<unsigned char const *>(object);
    ReusableStringStream rss;
    rss << "0x" << std::setfill('0') << std::hex;
    for (; i != end; i += inc)
        rss << std::setw(2) << static_cast<unsigned>(bytes[i]);
    return rss.str();
}
} // namespace Detail

template <typename T>
std::string fpToString(T value, int precision)
{
    if (std::isnan(value))
    {
        return "nan";
    }

    ReusableStringStream rss;
    rss << std::setprecision(precision)
        << std::fixed
        << value;
    std::string d = rss.str();
    std::size_t i = d.find_last_not_of('0');
    if (i != std::string::npos && i != d.size() - 1)
    {
        if (d[i] == '.')
            i++;
        d = d.substr(0, i + 1);
    }
    return d;
}

//// ======================================================= ////
//
//   Out-of-line defs for full specialization of StringMaker
//
//// ======================================================= ////

std::string StringMaker<std::string>::convert(const std::string &str)
{
    if (!getCurrentContext().getConfig()->showInvisibles())
    {
        return '"' + str + '"';
    }

    std::string s("\"");
    for (char c : str)
    {
        switch (c)
        {
            case '\n':
                s.append("\\n");
                break;
            case '\t':
                s.append("\\t");
                break;
            default:
                s.push_back(c);
                break;
        }
    }
    s.append("\"");
    return s;
}

#ifdef CATCH_CONFIG_WCHAR
std::string StringMaker<std::wstring>::convert(const std::wstring &wstr)
{
    std::string s;
    s.reserve(wstr.size());
    for (auto c : wstr)
    {
        s += (c <= 0xff) ? static_cast<char>(c) : '?';
    }
    return ::Catch::Detail::stringify(s);
}
#endif

std::string StringMaker<char const *>::convert(char const *str)
{
    if (str)
    {
        return ::Catch::Detail::stringify(std::string{str});
    }
    else
    {
        return {"{null string}"};
    }
}
std::string StringMaker<char *>::convert(char *str)
{
    if (str)
    {
        return ::Catch::Detail::stringify(std::string{str});
    }
    else
    {
        return {"{null string}"};
    }
}
#ifdef CATCH_CONFIG_WCHAR
std::string StringMaker<wchar_t const *>::convert(wchar_t const *str)
{
    if (str)
    {
        return ::Catch::Detail::stringify(std::wstring{str});
    }
    else
    {
        return {"{null string}"};
    }
}
std::string StringMaker<wchar_t *>::convert(wchar_t *str)
{
    if (str)
    {
        return ::Catch::Detail::stringify(std::wstring{str});
    }
    else
    {
        return {"{null string}"};
    }
}
#endif

std::string StringMaker<int>::convert(int value)
{
    return ::Catch::Detail::stringify(static_cast<long long>(value));
}
std::string StringMaker<long>::convert(long value)
{
    return ::Catch::Detail::stringify(static_cast<long long>(value));
}
std::string StringMaker<long long>::convert(long long value)
{
    ReusableStringStream rss;
    rss << value;
    if (value > Detail::hexThreshold)
    {
        rss << " (0x" << std::hex << value << ')';
    }
    return rss.str();
}

std::string StringMaker<unsigned int>::convert(unsigned int value)
{
    return ::Catch::Detail::stringify(static_cast<unsigned long long>(value));
}
std::string StringMaker<unsigned long>::convert(unsigned long value)
{
    return ::Catch::Detail::stringify(static_cast<unsigned long long>(value));
}
std::string StringMaker<unsigned long long>::convert(unsigned long long value)
{
    ReusableStringStream rss;
    rss << value;
    if (value > Detail::hexThreshold)
    {
        rss << " (0x" << std::hex << value << ')';
    }
    return rss.str();
}

std::string StringMaker<bool>::convert(bool b)
{
    return b ? "true" : "false";
}

std::string StringMaker<char>::convert(char value)
{
    if (value == '\r')
    {
        return "'\\r'";
    }
    else if (value == '\f')
    {
        return "'\\f'";
    }
    else if (value == '\n')
    {
        return "'\\n'";
    }
    else if (value == '\t')
    {
        return "'\\t'";
    }
    else if ('\0' <= value && value < ' ')
    {
        return ::Catch::Detail::stringify(static_cast<unsigned int>(value));
    }
    else
    {
        char chstr[] = "' '";
        chstr[1] = value;
        return chstr;
    }
}
std::string StringMaker<signed char>::convert(signed char c)
{
    return ::Catch::Detail::stringify(static_cast<char>(c));
}
std::string StringMaker<unsigned char>::convert(unsigned char c)
{
    return ::Catch::Detail::stringify(static_cast<char>(c));
}

std::string StringMaker<std::nullptr_t>::convert(std::nullptr_t)
{
    return "nullptr";
}

std::string StringMaker<float>::convert(float value)
{
    return fpToString(value, 5) + 'f';
}
std::string StringMaker<double>::convert(double value)
{
    return fpToString(value, 10);
}

std::string ratio_string<std::atto>::symbol() { return "a"; }
std::string ratio_string<std::femto>::symbol() { return "f"; }
std::string ratio_string<std::pico>::symbol() { return "p"; }
std::string ratio_string<std::nano>::symbol() { return "n"; }
std::string ratio_string<std::micro>::symbol() { return "u"; }
std::string ratio_string<std::milli>::symbol() { return "m"; }

} // end namespace Catch

#if defined(__clang__)
#pragma clang diagnostic pop
#endif

// end catch_tostring.cpp
// start catch_totals.cpp

namespace Catch
{

Counts Counts::operator-(Counts const &other) const
{
    Counts diff;
    diff.passed = passed - other.passed;
    diff.failed = failed - other.failed;
    diff.failedButOk = failedButOk - other.failedButOk;
    return diff;
}

Counts &Counts::operator+=(Counts const &other)
{
    passed += other.passed;
    failed += other.failed;
    failedButOk += other.failedButOk;
    return *this;
}

std::size_t Counts::total() const
{
    return passed + failed + failedButOk;
}
bool Counts::allPassed() const
{
    return failed == 0 && failedButOk == 0;
}
bool Counts::allOk() const
{
    return failed == 0;
}

Totals Totals::operator-(Totals const &other) const
{
    Totals diff;
    diff.assertions = assertions - other.assertions;
    diff.testCases = testCases - other.testCases;
    return diff;
}

Totals &Totals::operator+=(Totals const &other)
{
    assertions += other.assertions;
    testCases += other.testCases;
    return *this;
}

Totals Totals::delta(Totals const &prevTotals) const
{
    Totals diff = *this - prevTotals;
    if (diff.assertions.failed > 0)
        ++diff.testCases.failed;
    else if (diff.assertions.failedButOk > 0)
        ++diff.testCases.failedButOk;
    else
        ++diff.testCases.passed;
    return diff;
}

} // namespace Catch
// end catch_totals.cpp
// start catch_uncaught_exceptions.cpp

#include <exception>

namespace Catch
{
bool uncaught_exceptions()
{
#if defined(CATCH_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS)
    return std::uncaught_exceptions() > 0;
#else
    return std::uncaught_exception();
#endif
}
} // end namespace Catch
// end catch_uncaught_exceptions.cpp
// start catch_version.cpp

#include <ostream>

namespace Catch
{

Version::Version(unsigned int _majorVersion,
                 unsigned int _minorVersion,
                 unsigned int _patchNumber,
                 char const *const _branchName,
                 unsigned int _buildNumber)
    : majorVersion(_majorVersion), minorVersion(_minorVersion), patchNumber(_patchNumber), branchName(_branchName), buildNumber(_buildNumber)
{
}

std::ostream &operator<<(std::ostream &os, Version const &version)
{
    os << version.majorVersion << '.'
       << version.minorVersion << '.'
       << version.patchNumber;
    // branchName is never null -> 0th char is \0 if it is empty
    if (version.branchName[0])
    {
        os << '-' << version.branchName
           << '.' << version.buildNumber;
    }
    return os;
}

Version const &libraryVersion()
{
    static Version version(2, 2, 3, "", 0);
    return version;
}

} // namespace Catch
// end catch_version.cpp
// start catch_wildcard_pattern.cpp

#include <sstream>

namespace Catch
{

WildcardPattern::WildcardPattern(std::string const &pattern,
                                 CaseSensitive::Choice caseSensitivity)
    : m_caseSensitivity(caseSensitivity), m_pattern(adjustCase(pattern))
{
    if (startsWith(m_pattern, '*'))
    {
        m_pattern = m_pattern.substr(1);
        m_wildcard = WildcardAtStart;
    }
    if (endsWith(m_pattern, '*'))
    {
        m_pattern = m_pattern.substr(0, m_pattern.size() - 1);
        m_wildcard = static_cast<WildcardPosition>(m_wildcard | WildcardAtEnd);
    }
}

bool WildcardPattern::matches(std::string const &str) const
{
    switch (m_wildcard)
    {
        case NoWildcard:
            return m_pattern == adjustCase(str);
        case WildcardAtStart:
            return endsWith(adjustCase(str), m_pattern);
        case WildcardAtEnd:
            return startsWith(adjustCase(str), m_pattern);
        case WildcardAtBothEnds:
            return contains(adjustCase(str), m_pattern);
        default:
            CATCH_INTERNAL_ERROR("Unknown enum");
    }
}

std::string WildcardPattern::adjustCase(std::string const &str) const
{
    return m_caseSensitivity == CaseSensitive::No ? toLower(str) : str;
}
} // namespace Catch
// end catch_wildcard_pattern.cpp
// start catch_xmlwriter.cpp

#include <iomanip>

using uchar = unsigned char;

namespace Catch
{

namespace
{

size_t trailingBytes(unsigned char c)
{
    if ((c & 0xE0) == 0xC0)
    {
        return 2;
    }
    if ((c & 0xF0) == 0xE0)
    {
        return 3;
    }
    if ((c & 0xF8) == 0xF0)
    {
        return 4;
    }
    CATCH_INTERNAL_ERROR("Invalid multibyte utf-8 start byte encountered");
}

uint32_t headerValue(unsigned char c)
{
    if ((c & 0xE0) == 0xC0)
    {
        return c & 0x1F;
    }
    if ((c & 0xF0) == 0xE0)
    {
        return c & 0x0F;
    }
    if ((c & 0xF8) == 0xF0)
    {
        return c & 0x07;
    }
    CATCH_INTERNAL_ERROR("Invalid multibyte utf-8 start byte encountered");
}

void hexEscapeChar(std::ostream &os, unsigned char c)
{
    os << "\\x"
       << std::uppercase << std::hex << std::setfill('0') << std::setw(2)
       << static_cast<int>(c);
}

} // anonymous namespace

XmlEncode::XmlEncode(std::string const &str, ForWhat forWhat)
    : m_str(str), m_forWhat(forWhat)
{
}

void XmlEncode::encodeTo(std::ostream &os) const
{
    // Apostrophe escaping not necessary if we always use " to write attributes
    // (see: http://www.w3.org/TR/xml/#syntax)

    for (std::size_t idx = 0; idx < m_str.size(); ++idx)
    {
        uchar c = m_str[idx];
        switch (c)
        {
            case '<': os << "&lt;"; break;
            case '&': os << "&amp;"; break;

            case '>':
                // See: http://www.w3.org/TR/xml/#syntax
                if (idx > 2 && m_str[idx - 1] == ']' && m_str[idx - 2] == ']')
                    os << "&gt;";
                else
                    os << c;
                break;

            case '\"':
                if (m_forWhat == ForAttributes)
                    os << "&quot;";
                else
                    os << c;
                break;

            default:
                // Check for control characters and invalid utf-8

                // Escape control characters in standard ascii
                // see http://stackoverflow.com/questions/404107/why-are-control-characters-illegal-in-xml-1-0
                if (c < 0x09 || (c > 0x0D && c < 0x20) || c == 0x7F)
                {
                    hexEscapeChar(os, c);
                    break;
                }

                // Plain ASCII: Write it to stream
                if (c < 0x7F)
                {
                    os << c;
                    break;
                }

                // UTF-8 territory
                // Check if the encoding is valid and if it is not, hex escape bytes.
                // Important: We do not check the exact decoded values for validity, only the encoding format
                // First check that this bytes is a valid lead byte:
                // This means that it is not encoded as 1111 1XXX
                // Or as 10XX XXXX
                if (c < 0xC0 || c >= 0xF8)
                {
                    hexEscapeChar(os, c);
                    break;
                }

                auto encBytes = trailingBytes(c);
                // Are there enough bytes left to avoid accessing out-of-bounds memory?
                if (idx + encBytes - 1 >= m_str.size())
                {
                    hexEscapeChar(os, c);
                    break;
                }
                // The header is valid, check data
                // The next encBytes bytes must together be a valid utf-8
                // This means: bitpattern 10XX XXXX and the extracted value is sane (ish)
                bool valid = true;
                uint32_t value = headerValue(c);
                for (std::size_t n = 1; n < encBytes; ++n)
                {
                    uchar nc = m_str[idx + n];
                    valid &= ((nc & 0xC0) == 0x80);
                    value = (value << 6) | (nc & 0x3F);
                }

                if (
                    // Wrong bit pattern of following bytes
                    (!valid) ||
                    // Overlong encodings
                    (value < 0x80) || (0x80 <= value && value < 0x800 && encBytes > 2) || (0x800 < value && value < 0x10000 && encBytes > 3) ||
                    // Encoded value out of range
                    (value >= 0x110000))
                {
                    hexEscapeChar(os, c);
                    break;
                }

                // If we got here, this is in fact a valid(ish) utf-8 sequence
                for (std::size_t n = 0; n < encBytes; ++n)
                {
                    os << m_str[idx + n];
                }
                idx += encBytes - 1;
                break;
        }
    }
}

std::ostream &operator<<(std::ostream &os, XmlEncode const &xmlEncode)
{
    xmlEncode.encodeTo(os);
    return os;
}

XmlWriter::ScopedElement::ScopedElement(XmlWriter *writer)
    : m_writer(writer)
{
}

XmlWriter::ScopedElement::ScopedElement(ScopedElement &&other) noexcept
    : m_writer(other.m_writer)
{
    other.m_writer = nullptr;
}
XmlWriter::ScopedElement &XmlWriter::ScopedElement::operator=(ScopedElement &&other) noexcept
{
    if (m_writer)
    {
        m_writer->endElement();
    }
    m_writer = other.m_writer;
    other.m_writer = nullptr;
    return *this;
}

XmlWriter::ScopedElement::~ScopedElement()
{
    if (m_writer)
        m_writer->endElement();
}

XmlWriter::ScopedElement &XmlWriter::ScopedElement::writeText(std::string const &text, bool indent)
{
    m_writer->writeText(text, indent);
    return *this;
}

XmlWriter::XmlWriter(std::ostream &os)
    : m_os(os)
{
    writeDeclaration();
}

XmlWriter::~XmlWriter()
{
    while (!m_tags.empty())
        endElement();
}

XmlWriter &XmlWriter::startElement(std::string const &name)
{
    ensureTagClosed();
    newlineIfNecessary();
    m_os << m_indent << '<' << name;
    m_tags.push_back(name);
    m_indent += "  ";
    m_tagIsOpen = true;
    return *this;
}

XmlWriter::ScopedElement XmlWriter::scopedElement(std::string const &name)
{
    ScopedElement scoped(this);
    startElement(name);
    return scoped;
}

XmlWriter &XmlWriter::endElement()
{
    newlineIfNecessary();
    m_indent = m_indent.substr(0, m_indent.size() - 2);
    if (m_tagIsOpen)
    {
        m_os << "/>";
        m_tagIsOpen = false;
    }
    else
    {
        m_os << m_indent << "</" << m_tags.back() << ">";
    }
    m_os << std::endl;
    m_tags.pop_back();
    return *this;
}

XmlWriter &XmlWriter::writeAttribute(std::string const &name, std::string const &attribute)
{
    if (!name.empty() && !attribute.empty())
        m_os << ' ' << name << "=\"" << XmlEncode(attribute, XmlEncode::ForAttributes) << '"';
    return *this;
}

XmlWriter &XmlWriter::writeAttribute(std::string const &name, bool attribute)
{
    m_os << ' ' << name << "=\"" << (attribute ? "true" : "false") << '"';
    return *this;
}

XmlWriter &XmlWriter::writeText(std::string const &text, bool indent)
{
    if (!text.empty())
    {
        bool tagWasOpen = m_tagIsOpen;
        ensureTagClosed();
        if (tagWasOpen && indent)
            m_os << m_indent;
        m_os << XmlEncode(text);
        m_needsNewline = true;
    }
    return *this;
}

XmlWriter &XmlWriter::writeComment(std::string const &text)
{
    ensureTagClosed();
    m_os << m_indent << "<!--" << text << "-->";
    m_needsNewline = true;
    return *this;
}

void XmlWriter::writeStylesheetRef(std::string const &url)
{
    m_os << "<?xml-stylesheet type=\"text/xsl\" href=\"" << url << "\"?>\n";
}

XmlWriter &XmlWriter::writeBlankLine()
{
    ensureTagClosed();
    m_os << '\n';
    return *this;
}

void XmlWriter::ensureTagClosed()
{
    if (m_tagIsOpen)
    {
        m_os << ">" << std::endl;
        m_tagIsOpen = false;
    }
}

void XmlWriter::writeDeclaration()
{
    m_os << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
}

void XmlWriter::newlineIfNecessary()
{
    if (m_needsNewline)
    {
        m_os << std::endl;
        m_needsNewline = false;
    }
}
} // namespace Catch
// end catch_xmlwriter.cpp
// start catch_reporter_bases.cpp

#include <cassert>
#include <cfloat>
#include <cstdio>
#include <cstring>
#include <memory>

namespace Catch
{
void prepareExpandedExpression(AssertionResult &result)
{
    result.getExpandedExpression();
}

// Because formatting using c++ streams is stateful, drop down to C is required
// Alternatively we could use stringstream, but its performance is... not good.
std::string getFormattedDuration(double duration)
{
    // Max exponent + 1 is required to represent the whole part
    // + 1 for decimal point
    // + 3 for the 3 decimal places
    // + 1 for null terminator
    const std::size_t maxDoubleSize = DBL_MAX_10_EXP + 1 + 1 + 3 + 1;
    char buffer[maxDoubleSize];

    // Save previous errno, to prevent sprintf from overwriting it
    ErrnoGuard guard;
#ifdef _MSC_VER
    sprintf_s(buffer, "%.3f", duration);
#else
    sprintf(buffer, "%.3f", duration);
#endif
    return std::string(buffer);
}

TestEventListenerBase::TestEventListenerBase(ReporterConfig const &_config)
    : StreamingReporterBase(_config) {}

void TestEventListenerBase::assertionStarting(AssertionInfo const &) {}

bool TestEventListenerBase::assertionEnded(AssertionStats const &)
{
    return false;
}

} // end namespace Catch
// end catch_reporter_bases.cpp
// start catch_reporter_compact.cpp

namespace
{

#ifdef CATCH_PLATFORM_MAC
const char *failedString()
{
    return "FAILED";
}
const char *passedString() { return "PASSED"; }
#else
const char *failedString()
{
    return "failed";
}
const char *passedString() { return "passed"; }
#endif

// Colour::LightGrey
Catch::Colour::Code dimColour() { return Catch::Colour::FileName; }

std::string bothOrAll(std::size_t count)
{
    return count == 1 ? std::string() :
                        count == 2 ? "both " : "all ";
}

} // namespace

namespace Catch
{
namespace
{
// Colour, message variants:
// - white: No tests ran.
// -   red: Failed [both/all] N test cases, failed [both/all] M assertions.
// - white: Passed [both/all] N test cases (no assertions).
// -   red: Failed N tests cases, failed M assertions.
// - green: Passed [both/all] N tests cases with M assertions.
void printTotals(std::ostream &out, const Totals &totals)
{
    if (totals.testCases.total() == 0)
    {
        out << "No tests ran.";
    }
    else if (totals.testCases.failed == totals.testCases.total())
    {
        Colour colour(Colour::ResultError);
        const std::string qualify_assertions_failed = totals.assertions.failed == totals.assertions.total() ?
                                                          bothOrAll(totals.assertions.failed) :
                                                          std::string();
        out << "Failed " << bothOrAll(totals.testCases.failed)
            << pluralise(totals.testCases.failed, "test case") << ", "
                                                                  "failed "
            << qualify_assertions_failed << pluralise(totals.assertions.failed, "assertion") << '.';
    }
    else if (totals.assertions.total() == 0)
    {
        out << "Passed " << bothOrAll(totals.testCases.total())
            << pluralise(totals.testCases.total(), "test case")
            << " (no assertions).";
    }
    else if (totals.assertions.failed)
    {
        Colour colour(Colour::ResultError);
        out << "Failed " << pluralise(totals.testCases.failed, "test case") << ", "
                                                                               "failed "
            << pluralise(totals.assertions.failed, "assertion") << '.';
    }
    else
    {
        Colour colour(Colour::ResultSuccess);
        out << "Passed " << bothOrAll(totals.testCases.passed)
            << pluralise(totals.testCases.passed, "test case") << " with " << pluralise(totals.assertions.passed, "assertion") << '.';
    }
}

// Implementation of CompactReporter formatting
class AssertionPrinter
{
  public:
    AssertionPrinter &operator=(AssertionPrinter const &) = delete;
    AssertionPrinter(AssertionPrinter const &) = delete;
    AssertionPrinter(std::ostream &_stream, AssertionStats const &_stats, bool _printInfoMessages)
        : stream(_stream)
        , result(_stats.assertionResult)
        , messages(_stats.infoMessages)
        , itMessage(_stats.infoMessages.begin())
        , printInfoMessages(_printInfoMessages) {}

    void print()
    {
        printSourceInfo();

        itMessage = messages.begin();

        switch (result.getResultType())
        {
            case ResultWas::Ok:
                printResultType(Colour::ResultSuccess, passedString());
                printOriginalExpression();
                printReconstructedExpression();
                if (!result.hasExpression())
                    printRemainingMessages(Colour::None);
                else
                    printRemainingMessages();
                break;
            case ResultWas::ExpressionFailed:
                if (result.isOk())
                    printResultType(Colour::ResultSuccess, failedString() + std::string(" - but was ok"));
                else
                    printResultType(Colour::Error, failedString());
                printOriginalExpression();
                printReconstructedExpression();
                printRemainingMessages();
                break;
            case ResultWas::ThrewException:
                printResultType(Colour::Error, failedString());
                printIssue("unexpected exception with message:");
                printMessage();
                printExpressionWas();
                printRemainingMessages();
                break;
            case ResultWas::FatalErrorCondition:
                printResultType(Colour::Error, failedString());
                printIssue("fatal error condition with message:");
                printMessage();
                printExpressionWas();
                printRemainingMessages();
                break;
            case ResultWas::DidntThrowException:
                printResultType(Colour::Error, failedString());
                printIssue("expected exception, got none");
                printExpressionWas();
                printRemainingMessages();
                break;
            case ResultWas::Info:
                printResultType(Colour::None, "info");
                printMessage();
                printRemainingMessages();
                break;
            case ResultWas::Warning:
                printResultType(Colour::None, "warning");
                printMessage();
                printRemainingMessages();
                break;
            case ResultWas::ExplicitFailure:
                printResultType(Colour::Error, failedString());
                printIssue("explicitly");
                printRemainingMessages(Colour::None);
                break;
                // These cases are here to prevent compiler warnings
            case ResultWas::Unknown:
            case ResultWas::FailureBit:
            case ResultWas::Exception:
                printResultType(Colour::Error, "** internal error **");
                break;
        }
    }

  private:
    void printSourceInfo() const
    {
        Colour colourGuard(Colour::FileName);
        stream << result.getSourceInfo() << ':';
    }

    void printResultType(Colour::Code colour, std::string const &passOrFail) const
    {
        if (!passOrFail.empty())
        {
            {
                Colour colourGuard(colour);
                stream << ' ' << passOrFail;
            }
            stream << ':';
        }
    }

    void printIssue(std::string const &issue) const
    {
        stream << ' ' << issue;
    }

    void printExpressionWas()
    {
        if (result.hasExpression())
        {
            stream << ';';
            {
                Colour colour(dimColour());
                stream << " expression was:";
            }
            printOriginalExpression();
        }
    }

    void printOriginalExpression() const
    {
        if (result.hasExpression())
        {
            stream << ' ' << result.getExpression();
        }
    }

    void printReconstructedExpression() const
    {
        if (result.hasExpandedExpression())
        {
            {
                Colour colour(dimColour());
                stream << " for: ";
            }
            stream << result.getExpandedExpression();
        }
    }

    void printMessage()
    {
        if (itMessage != messages.end())
        {
            stream << " '" << itMessage->message << '\'';
            ++itMessage;
        }
    }

    void printRemainingMessages(Colour::Code colour = dimColour())
    {
        if (itMessage == messages.end())
            return;

        // using messages.end() directly yields (or auto) compilation error:
        std::vector<MessageInfo>::const_iterator itEnd = messages.end();
        const std::size_t N = static_cast<std::size_t>(std::distance(itMessage, itEnd));

        {
            Colour colourGuard(colour);
            stream << " with " << pluralise(N, "message") << ':';
        }

        for (; itMessage != itEnd;)
        {
            // If this assertion is a warning ignore any INFO messages
            if (printInfoMessages || itMessage->type != ResultWas::Info)
            {
                stream << " '" << itMessage->message << '\'';
                if (++itMessage != itEnd)
                {
                    Colour colourGuard(dimColour());
                    stream << " and";
                }
            }
        }
    }

  private:
    std::ostream &stream;
    AssertionResult const &result;
    std::vector<MessageInfo> messages;
    std::vector<MessageInfo>::const_iterator itMessage;
    bool printInfoMessages;
};

} // namespace

std::string CompactReporter::getDescription()
{
    return "Reports test results on a single line, suitable for IDEs";
}

ReporterPreferences CompactReporter::getPreferences() const
{
    ReporterPreferences prefs;
    prefs.shouldRedirectStdOut = false;
    return prefs;
}

void CompactReporter::noMatchingTestCases(std::string const &spec)
{
    stream << "No test cases matched '" << spec << '\'' << std::endl;
}

void CompactReporter::assertionStarting(AssertionInfo const &) {}

bool CompactReporter::assertionEnded(AssertionStats const &_assertionStats)
{
    AssertionResult const &result = _assertionStats.assertionResult;

    bool printInfoMessages = true;

    // Drop out if result was successful and we're not printing those
    if (!m_config->includeSuccessfulResults() && result.isOk())
    {
        if (result.getResultType() != ResultWas::Warning)
            return false;
        printInfoMessages = false;
    }

    AssertionPrinter printer(stream, _assertionStats, printInfoMessages);
    printer.print();

    stream << std::endl;
    return true;
}

void CompactReporter::sectionEnded(SectionStats const &_sectionStats)
{
    if (m_config->showDurations() == ShowDurations::Always)
    {
        stream << getFormattedDuration(_sectionStats.durationInSeconds) << " s: " << _sectionStats.sectionInfo.name << std::endl;
    }
}

void CompactReporter::testRunEnded(TestRunStats const &_testRunStats)
{
    printTotals(stream, _testRunStats.totals);
    stream << '\n'
           << std::endl;
    StreamingReporterBase::testRunEnded(_testRunStats);
}

CompactReporter::~CompactReporter() {}

CATCH_REGISTER_REPORTER("compact", CompactReporter)

} // end namespace Catch
// end catch_reporter_compact.cpp
// start catch_reporter_console.cpp

#include <cfloat>
#include <cstdio>

#if defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable : 4061) // Not all labels are EXPLICITLY handled in switch
// Note that 4062 (not all labels are handled
// and default is missing) is enabled
#endif

namespace Catch
{

namespace
{

// Formatter impl for ConsoleReporter
class ConsoleAssertionPrinter
{
  public:
    ConsoleAssertionPrinter &operator=(ConsoleAssertionPrinter const &) = delete;
    ConsoleAssertionPrinter(ConsoleAssertionPrinter const &) = delete;
    ConsoleAssertionPrinter(std::ostream &_stream, AssertionStats const &_stats, bool _printInfoMessages)
        : stream(_stream), stats(_stats), result(_stats.assertionResult), colour(Colour::None), message(result.getMessage()), messages(_stats.infoMessages), printInfoMessages(_printInfoMessages)
    {
        switch (result.getResultType())
        {
            case ResultWas::Ok:
                colour = Colour::Success;
                passOrFail = "PASSED";
                //if( result.hasMessage() )
                if (_stats.infoMessages.size() == 1)
                    messageLabel = "with message";
                if (_stats.infoMessages.size() > 1)
                    messageLabel = "with messages";
                break;
            case ResultWas::ExpressionFailed:
                if (result.isOk())
                {
                    colour = Colour::Success;
                    passOrFail = "FAILED - but was ok";
                }
                else
                {
                    colour = Colour::Error;
                    passOrFail = "FAILED";
                }
                if (_stats.infoMessages.size() == 1)
                    messageLabel = "with message";
                if (_stats.infoMessages.size() > 1)
                    messageLabel = "with messages";
                break;
            case ResultWas::ThrewException:
                colour = Colour::Error;
                passOrFail = "FAILED";
                messageLabel = "due to unexpected exception with ";
                if (_stats.infoMessages.size() == 1)
                    messageLabel += "message";
                if (_stats.infoMessages.size() > 1)
                    messageLabel += "messages";
                break;
            case ResultWas::FatalErrorCondition:
                colour = Colour::Error;
                passOrFail = "FAILED";
                messageLabel = "due to a fatal error condition";
                break;
            case ResultWas::DidntThrowException:
                colour = Colour::Error;
                passOrFail = "FAILED";
                messageLabel = "because no exception was thrown where one was expected";
                break;
            case ResultWas::Info:
                messageLabel = "info";
                break;
            case ResultWas::Warning:
                messageLabel = "warning";
                break;
            case ResultWas::ExplicitFailure:
                passOrFail = "FAILED";
                colour = Colour::Error;
                if (_stats.infoMessages.size() == 1)
                    messageLabel = "explicitly with message";
                if (_stats.infoMessages.size() > 1)
                    messageLabel = "explicitly with messages";
                break;
                // These cases are here to prevent compiler warnings
            case ResultWas::Unknown:
            case ResultWas::FailureBit:
            case ResultWas::Exception:
                passOrFail = "** internal error **";
                colour = Colour::Error;
                break;
        }
    }

    void print() const
    {
        printSourceInfo();
        if (stats.totals.assertions.total() > 0)
        {
            if (result.isOk())
                stream << '\n';
            printResultType();
            printOriginalExpression();
            printReconstructedExpression();
        }
        else
        {
            stream << '\n';
        }
        printMessage();
    }

  private:
    void printResultType() const
    {
        if (!passOrFail.empty())
        {
            Colour colourGuard(colour);
            stream << passOrFail << ":\n";
        }
    }
    void printOriginalExpression() const
    {
        if (result.hasExpression())
        {
            Colour colourGuard(Colour::OriginalExpression);
            stream << "  ";
            stream << result.getExpressionInMacro();
            stream << '\n';
        }
    }
    void printReconstructedExpression() const
    {
        if (result.hasExpandedExpression())
        {
            stream << "with expansion:\n";
            Colour colourGuard(Colour::ReconstructedExpression);
            stream << Column(result.getExpandedExpression()).indent(2) << '\n';
        }
    }
    void printMessage() const
    {
        if (!messageLabel.empty())
            stream << messageLabel << ':' << '\n';
        for (auto const &msg : messages)
        {
            // If this assertion is a warning ignore any INFO messages
            if (printInfoMessages || msg.type != ResultWas::Info)
                stream << Column(msg.message).indent(2) << '\n';
        }
    }
    void printSourceInfo() const
    {
        Colour colourGuard(Colour::FileName);
        stream << result.getSourceInfo() << ": ";
    }

    std::ostream &stream;
    AssertionStats const &stats;
    AssertionResult const &result;
    Colour::Code colour;
    std::string passOrFail;
    std::string messageLabel;
    std::string message;
    std::vector<MessageInfo> messages;
    bool printInfoMessages;
};

std::size_t makeRatio(std::size_t number, std::size_t total)
{
    std::size_t ratio = total > 0 ? CATCH_CONFIG_CONSOLE_WIDTH * number / total : 0;
    return (ratio == 0 && number > 0) ? 1 : ratio;
}

std::size_t &findMax(std::size_t &i, std::size_t &j, std::size_t &k)
{
    if (i > j && i > k)
        return i;
    else if (j > k)
        return j;
    else
        return k;
}

struct ColumnInfo
{
    enum Justification
    {
        Left,
        Right
    };
    std::string name;
    int width;
    Justification justification;
};
struct ColumnBreak
{
};
struct RowBreak
{
};

class Duration
{
    enum class Unit
    {
        Auto,
        Nanoseconds,
        Microseconds,
        Milliseconds,
        Seconds,
        Minutes
    };
    static const uint64_t s_nanosecondsInAMicrosecond = 1000;
    static const uint64_t s_nanosecondsInAMillisecond = 1000 * s_nanosecondsInAMicrosecond;
    static const uint64_t s_nanosecondsInASecond = 1000 * s_nanosecondsInAMillisecond;
    static const uint64_t s_nanosecondsInAMinute = 60 * s_nanosecondsInASecond;

    uint64_t m_inNanoseconds;
    Unit m_units;

  public:
    explicit Duration(uint64_t inNanoseconds, Unit units = Unit::Auto)
        : m_inNanoseconds(inNanoseconds), m_units(units)
    {
        if (m_units == Unit::Auto)
        {
            if (m_inNanoseconds < s_nanosecondsInAMicrosecond)
                m_units = Unit::Nanoseconds;
            else if (m_inNanoseconds < s_nanosecondsInAMillisecond)
                m_units = Unit::Microseconds;
            else if (m_inNanoseconds < s_nanosecondsInASecond)
                m_units = Unit::Milliseconds;
            else if (m_inNanoseconds < s_nanosecondsInAMinute)
                m_units = Unit::Seconds;
            else
                m_units = Unit::Minutes;
        }
    }

    auto value() const -> double
    {
        switch (m_units)
        {
            case Unit::Microseconds:
                return m_inNanoseconds / static_cast<double>(s_nanosecondsInAMicrosecond);
            case Unit::Milliseconds:
                return m_inNanoseconds / static_cast<double>(s_nanosecondsInAMillisecond);
            case Unit::Seconds:
                return m_inNanoseconds / static_cast<double>(s_nanosecondsInASecond);
            case Unit::Minutes:
                return m_inNanoseconds / static_cast<double>(s_nanosecondsInAMinute);
            default:
                return static_cast<double>(m_inNanoseconds);
        }
    }
    auto unitsAsString() const -> std::string
    {
        switch (m_units)
        {
            case Unit::Nanoseconds:
                return "ns";
            case Unit::Microseconds:
                return "µs";
            case Unit::Milliseconds:
                return "ms";
            case Unit::Seconds:
                return "s";
            case Unit::Minutes:
                return "m";
            default:
                return "** internal error **";
        }
    }
    friend auto operator<<(std::ostream &os, Duration const &duration) -> std::ostream &
    {
        return os << duration.value() << " " << duration.unitsAsString();
    }
};
} // namespace

class TablePrinter
{
    std::ostream &m_os;
    std::vector<ColumnInfo> m_columnInfos;
    std::ostringstream m_oss;
    int m_currentColumn = -1;
    bool m_isOpen = false;

  public:
    TablePrinter(std::ostream &os, std::vector<ColumnInfo> columnInfos)
        : m_os(os), m_columnInfos(std::move(columnInfos)) {}

    auto columnInfos() const -> std::vector<ColumnInfo> const &
    {
        return m_columnInfos;
    }

    void open()
    {
        if (!m_isOpen)
        {
            m_isOpen = true;
            *this << RowBreak();
            for (auto const &info : m_columnInfos)
                *this << info.name << ColumnBreak();
            *this << RowBreak();
            m_os << Catch::getLineOfChars<'-'>() << "\n";
        }
    }
    void close()
    {
        if (m_isOpen)
        {
            *this << RowBreak();
            m_os << std::endl;
            m_isOpen = false;
        }
    }

    template <typename T>
    friend TablePrinter &operator<<(TablePrinter &tp, T const &value)
    {
        tp.m_oss << value;
        return tp;
    }

    friend TablePrinter &operator<<(TablePrinter &tp, ColumnBreak)
    {
        auto colStr = tp.m_oss.str();
        // This takes account of utf8 encodings
        auto strSize = Catch::StringRef(colStr).numberOfCharacters();
        tp.m_oss.str("");
        tp.open();
        if (tp.m_currentColumn == static_cast<int>(tp.m_columnInfos.size() - 1))
        {
            tp.m_currentColumn = -1;
            tp.m_os << "\n";
        }
        tp.m_currentColumn++;

        auto colInfo = tp.m_columnInfos[tp.m_currentColumn];
        auto padding = (strSize + 2 < static_cast<std::size_t>(colInfo.width)) ? std::string(colInfo.width - (strSize + 2), ' ') : std::string();
        if (colInfo.justification == ColumnInfo::Left)
            tp.m_os << colStr << padding << " ";
        else
            tp.m_os << padding << colStr << " ";
        return tp;
    }

    friend TablePrinter &operator<<(TablePrinter &tp, RowBreak)
    {
        if (tp.m_currentColumn > 0)
        {
            tp.m_os << "\n";
            tp.m_currentColumn = -1;
        }
        return tp;
    }
};

ConsoleReporter::ConsoleReporter(ReporterConfig const &config)
    : StreamingReporterBase(config), m_tablePrinter(new TablePrinter(config.stream(), {{"benchmark name", CATCH_CONFIG_CONSOLE_WIDTH - 32, ColumnInfo::Left}, {"iters", 8, ColumnInfo::Right}, {"elapsed ns", 14, ColumnInfo::Right}, {"average", 14, ColumnInfo::Right}})) {}
ConsoleReporter::~ConsoleReporter() = default;

std::string ConsoleReporter::getDescription()
{
    return "Reports test results as plain lines of text";
}

void ConsoleReporter::noMatchingTestCases(std::string const &spec)
{
    stream << "No test cases matched '" << spec << '\'' << std::endl;
}

void ConsoleReporter::assertionStarting(AssertionInfo const &) {}

bool ConsoleReporter::assertionEnded(AssertionStats const &_assertionStats)
{
    AssertionResult const &result = _assertionStats.assertionResult;

    bool includeResults = m_config->includeSuccessfulResults() || !result.isOk();

    // Drop out if result was successful but we're not printing them.
    if (!includeResults && result.getResultType() != ResultWas::Warning)
        return false;

    lazyPrint();

    ConsoleAssertionPrinter printer(stream, _assertionStats, includeResults);
    printer.print();
    stream << std::endl;
    return true;
}

void ConsoleReporter::sectionStarting(SectionInfo const &_sectionInfo)
{
    m_headerPrinted = false;
    StreamingReporterBase::sectionStarting(_sectionInfo);
}
void ConsoleReporter::sectionEnded(SectionStats const &_sectionStats)
{
    m_tablePrinter->close();
    if (_sectionStats.missingAssertions)
    {
        lazyPrint();
        Colour colour(Colour::ResultError);
        if (m_sectionStack.size() > 1)
            stream << "\nNo assertions in section";
        else
            stream << "\nNo assertions in test case";
        stream << " '" << _sectionStats.sectionInfo.name << "'\n"
               << std::endl;
    }
    if (m_config->showDurations() == ShowDurations::Always)
    {
        stream << getFormattedDuration(_sectionStats.durationInSeconds) << " s: " << _sectionStats.sectionInfo.name << std::endl;
    }
    if (m_headerPrinted)
    {
        m_headerPrinted = false;
    }
    StreamingReporterBase::sectionEnded(_sectionStats);
}

void ConsoleReporter::benchmarkStarting(BenchmarkInfo const &info)
{
    lazyPrintWithoutClosingBenchmarkTable();

    auto nameCol = Column(info.name).width(static_cast<std::size_t>(m_tablePrinter->columnInfos()[0].width - 2));

    bool firstLine = true;
    for (auto line : nameCol)
    {
        if (!firstLine)
            (*m_tablePrinter) << ColumnBreak() << ColumnBreak() << ColumnBreak();
        else
            firstLine = false;

        (*m_tablePrinter) << line << ColumnBreak();
    }
}
void ConsoleReporter::benchmarkEnded(BenchmarkStats const &stats)
{
    Duration average(stats.elapsedTimeInNanoseconds / stats.iterations);
    (*m_tablePrinter)
        << stats.iterations << ColumnBreak()
        << stats.elapsedTimeInNanoseconds << ColumnBreak()
        << average << ColumnBreak();
}

void ConsoleReporter::testCaseEnded(TestCaseStats const &_testCaseStats)
{
    m_tablePrinter->close();
    StreamingReporterBase::testCaseEnded(_testCaseStats);
    m_headerPrinted = false;
}
void ConsoleReporter::testGroupEnded(TestGroupStats const &_testGroupStats)
{
    if (currentGroupInfo.used)
    {
        printSummaryDivider();
        stream << "Summary for group '" << _testGroupStats.groupInfo.name << "':\n";
        printTotals(_testGroupStats.totals);
        stream << '\n'
               << std::endl;
    }
    StreamingReporterBase::testGroupEnded(_testGroupStats);
}
void ConsoleReporter::testRunEnded(TestRunStats const &_testRunStats)
{
    printTotalsDivider(_testRunStats.totals);
    printTotals(_testRunStats.totals);
    stream << std::endl;
    StreamingReporterBase::testRunEnded(_testRunStats);
}

void ConsoleReporter::lazyPrint()
{

    m_tablePrinter->close();
    lazyPrintWithoutClosingBenchmarkTable();
}

void ConsoleReporter::lazyPrintWithoutClosingBenchmarkTable()
{

    if (!currentTestRunInfo.used)
        lazyPrintRunInfo();
    if (!currentGroupInfo.used)
        lazyPrintGroupInfo();

    if (!m_headerPrinted)
    {
        printTestCaseAndSectionHeader();
        m_headerPrinted = true;
    }
}
void ConsoleReporter::lazyPrintRunInfo()
{
    stream << '\n'
           << getLineOfChars<'~'>() << '\n';
    Colour colour(Colour::SecondaryText);
    stream << currentTestRunInfo->name
           << " is a Catch v" << libraryVersion() << " host application.\n"
           << "Run with -? for options\n\n";

    if (m_config->rngSeed() != 0)
        stream << "Randomness seeded to: " << m_config->rngSeed() << "\n\n";

    currentTestRunInfo.used = true;
}
void ConsoleReporter::lazyPrintGroupInfo()
{
    if (!currentGroupInfo->name.empty() && currentGroupInfo->groupsCounts > 1)
    {
        printClosedHeader("Group: " + currentGroupInfo->name);
        currentGroupInfo.used = true;
    }
}
void ConsoleReporter::printTestCaseAndSectionHeader()
{
    assert(!m_sectionStack.empty());
    printOpenHeader(currentTestCaseInfo->name);

    if (m_sectionStack.size() > 1)
    {
        Colour colourGuard(Colour::Headers);

        auto
            it
            = m_sectionStack.begin() + 1, // Skip first section (test case)
            itEnd = m_sectionStack.end();
        for (; it != itEnd; ++it)
            printHeaderString(it->name, 2);
    }

    SourceLineInfo lineInfo = m_sectionStack.back().lineInfo;

    if (!lineInfo.empty())
    {
        stream << getLineOfChars<'-'>() << '\n';
        Colour colourGuard(Colour::FileName);
        stream << lineInfo << '\n';
    }
    stream << getLineOfChars<'.'>() << '\n'
           << std::endl;
}

void ConsoleReporter::printClosedHeader(std::string const &_name)
{
    printOpenHeader(_name);
    stream << getLineOfChars<'.'>() << '\n';
}
void ConsoleReporter::printOpenHeader(std::string const &_name)
{
    stream << getLineOfChars<'-'>() << '\n';
    {
        Colour colourGuard(Colour::Headers);
        printHeaderString(_name);
    }
}

// if string has a : in first line will set indent to follow it on
// subsequent lines
void ConsoleReporter::printHeaderString(std::string const &_string, std::size_t indent)
{
    std::size_t i = _string.find(": ");
    if (i != std::string::npos)
        i += 2;
    else
        i = 0;
    stream << Column(_string).indent(indent + i).initialIndent(indent) << '\n';
}

struct SummaryColumn
{

    SummaryColumn(std::string _label, Colour::Code _colour)
        : label(std::move(_label)), colour(_colour) {}
    SummaryColumn addRow(std::size_t count)
    {
        ReusableStringStream rss;
        rss << count;
        std::string row = rss.str();
        for (auto &oldRow : rows)
        {
            while (oldRow.size() < row.size())
                oldRow = ' ' + oldRow;
            while (oldRow.size() > row.size())
                row = ' ' + row;
        }
        rows.push_back(row);
        return *this;
    }

    std::string label;
    Colour::Code colour;
    std::vector<std::string> rows;
};

void ConsoleReporter::printTotals(Totals const &totals)
{
    if (totals.testCases.total() == 0)
    {
        stream << Colour(Colour::Warning) << "No tests ran\n";
    }
    else if (totals.assertions.total() > 0 && totals.testCases.allPassed())
    {
        stream << Colour(Colour::ResultSuccess) << "All tests passed";
        stream << " ("
               << pluralise(totals.assertions.passed, "assertion") << " in "
               << pluralise(totals.testCases.passed, "test case") << ')'
               << '\n';
    }
    else
    {

        std::vector<SummaryColumn> columns;
        columns.push_back(SummaryColumn("", Colour::None)
                              .addRow(totals.testCases.total())
                              .addRow(totals.assertions.total()));
        columns.push_back(SummaryColumn("passed", Colour::Success)
                              .addRow(totals.testCases.passed)
                              .addRow(totals.assertions.passed));
        columns.push_back(SummaryColumn("failed", Colour::ResultError)
                              .addRow(totals.testCases.failed)
                              .addRow(totals.assertions.failed));
        columns.push_back(SummaryColumn("failed as expected", Colour::ResultExpectedFailure)
                              .addRow(totals.testCases.failedButOk)
                              .addRow(totals.assertions.failedButOk));

        printSummaryRow("test cases", columns, 0);
        printSummaryRow("assertions", columns, 1);
    }
}
void ConsoleReporter::printSummaryRow(std::string const &label, std::vector<SummaryColumn> const &cols, std::size_t row)
{
    for (auto col : cols)
    {
        std::string value = col.rows[row];
        if (col.label.empty())
        {
            stream << label << ": ";
            if (value != "0")
                stream << value;
            else
                stream << Colour(Colour::Warning) << "- none -";
        }
        else if (value != "0")
        {
            stream << Colour(Colour::LightGrey) << " | ";
            stream << Colour(col.colour)
                   << value << ' ' << col.label;
        }
    }
    stream << '\n';
}

void ConsoleReporter::printTotalsDivider(Totals const &totals)
{
    if (totals.testCases.total() > 0)
    {
        std::size_t failedRatio = makeRatio(totals.testCases.failed, totals.testCases.total());
        std::size_t failedButOkRatio = makeRatio(totals.testCases.failedButOk, totals.testCases.total());
        std::size_t passedRatio = makeRatio(totals.testCases.passed, totals.testCases.total());
        while (failedRatio + failedButOkRatio + passedRatio < CATCH_CONFIG_CONSOLE_WIDTH - 1)
            findMax(failedRatio, failedButOkRatio, passedRatio)++;
        while (failedRatio + failedButOkRatio + passedRatio > CATCH_CONFIG_CONSOLE_WIDTH - 1)
            findMax(failedRatio, failedButOkRatio, passedRatio)--;

        stream << Colour(Colour::Error) << std::string(failedRatio, '=');
        stream << Colour(Colour::ResultExpectedFailure) << std::string(failedButOkRatio, '=');
        if (totals.testCases.allPassed())
            stream << Colour(Colour::ResultSuccess) << std::string(passedRatio, '=');
        else
            stream << Colour(Colour::Success) << std::string(passedRatio, '=');
    }
    else
    {
        stream << Colour(Colour::Warning) << std::string(CATCH_CONFIG_CONSOLE_WIDTH - 1, '=');
    }
    stream << '\n';
}
void ConsoleReporter::printSummaryDivider()
{
    stream << getLineOfChars<'-'>() << '\n';
}

CATCH_REGISTER_REPORTER("console", ConsoleReporter)

} // end namespace Catch

#if defined(_MSC_VER)
#pragma warning(pop)
#endif
// end catch_reporter_console.cpp
// start catch_reporter_junit.cpp

#include <algorithm>
#include <cassert>
#include <ctime>
#include <sstream>

namespace Catch
{

namespace
{
std::string getCurrentTimestamp()
{
    // Beware, this is not reentrant because of backward compatibility issues
    // Also, UTC only, again because of backward compatibility (%z is C++11)
    time_t rawtime;
    std::time(&rawtime);
    auto const timeStampSize = sizeof("2017-01-16T17:06:45Z");

#ifdef _MSC_VER
    std::tm timeInfo = {};
    gmtime_s(&timeInfo, &rawtime);
#else
    std::tm *timeInfo;
    timeInfo = std::gmtime(&rawtime);
#endif

    char timeStamp[timeStampSize];
    const char *const fmt = "%Y-%m-%dT%H:%M:%SZ";

#ifdef _MSC_VER
    std::strftime(timeStamp, timeStampSize, fmt, &timeInfo);
#else
    std::strftime(timeStamp, timeStampSize, fmt, timeInfo);
#endif
    return std::string(timeStamp);
}

std::string fileNameTag(const std::vector<std::string> &tags)
{
    auto it = std::find_if(begin(tags),
                           end(tags),
                           [](std::string const &tag) { return tag.front() == '#'; });
    if (it != tags.end())
        return it->substr(1);
    return std::string();
}
} // anonymous namespace

JunitReporter::JunitReporter(ReporterConfig const &_config)
    : CumulativeReporterBase(_config), xml(_config.stream())
{
    m_reporterPrefs.shouldRedirectStdOut = true;
}

JunitReporter::~JunitReporter() {}

std::string JunitReporter::getDescription()
{
    return "Reports test results in an XML format that looks like Ant's junitreport target";
}

void JunitReporter::noMatchingTestCases(std::string const & /*spec*/) {}

void JunitReporter::testRunStarting(TestRunInfo const &runInfo)
{
    CumulativeReporterBase::testRunStarting(runInfo);
    xml.startElement("testsuites");
}

void JunitReporter::testGroupStarting(GroupInfo const &groupInfo)
{
    suiteTimer.start();
    stdOutForSuite.clear();
    stdErrForSuite.clear();
    unexpectedExceptions = 0;
    CumulativeReporterBase::testGroupStarting(groupInfo);
}

void JunitReporter::testCaseStarting(TestCaseInfo const &testCaseInfo)
{
    m_okToFail = testCaseInfo.okToFail();
}

bool JunitReporter::assertionEnded(AssertionStats const &assertionStats)
{
    if (assertionStats.assertionResult.getResultType() == ResultWas::ThrewException && !m_okToFail)
        unexpectedExceptions++;
    return CumulativeReporterBase::assertionEnded(assertionStats);
}

void JunitReporter::testCaseEnded(TestCaseStats const &testCaseStats)
{
    stdOutForSuite += testCaseStats.stdOut;
    stdErrForSuite += testCaseStats.stdErr;
    CumulativeReporterBase::testCaseEnded(testCaseStats);
}

void JunitReporter::testGroupEnded(TestGroupStats const &testGroupStats)
{
    double suiteTime = suiteTimer.getElapsedSeconds();
    CumulativeReporterBase::testGroupEnded(testGroupStats);
    writeGroup(*m_testGroups.back(), suiteTime);
}

void JunitReporter::testRunEndedCumulative()
{
    xml.endElement();
}

void JunitReporter::writeGroup(TestGroupNode const &groupNode, double suiteTime)
{
    XmlWriter::ScopedElement e = xml.scopedElement("testsuite");
    TestGroupStats const &stats = groupNode.value;
    xml.writeAttribute("name", stats.groupInfo.name);
    xml.writeAttribute("errors", unexpectedExceptions);
    xml.writeAttribute("failures", stats.totals.assertions.failed - unexpectedExceptions);
    xml.writeAttribute("tests", stats.totals.assertions.total());
    xml.writeAttribute("hostname", "tbd"); // !TBD
    if (m_config->showDurations() == ShowDurations::Never)
        xml.writeAttribute("time", "");
    else
        xml.writeAttribute("time", suiteTime);
    xml.writeAttribute("timestamp", getCurrentTimestamp());

    // Write test cases
    for (auto const &child : groupNode.children)
        writeTestCase(*child);

    xml.scopedElement("system-out").writeText(trim(stdOutForSuite), false);
    xml.scopedElement("system-err").writeText(trim(stdErrForSuite), false);
}

void JunitReporter::writeTestCase(TestCaseNode const &testCaseNode)
{
    TestCaseStats const &stats = testCaseNode.value;

    // All test cases have exactly one section - which represents the
    // test case itself. That section may have 0-n nested sections
    assert(testCaseNode.children.size() == 1);
    SectionNode const &rootSection = *testCaseNode.children.front();

    std::string className = stats.testInfo.className;

    if (className.empty())
    {
        className = fileNameTag(stats.testInfo.tags);
        if (className.empty())
            className = "global";
    }

    if (!m_config->name().empty())
        className = m_config->name() + "." + className;

    writeSection(className, "", rootSection);
}

void JunitReporter::writeSection(std::string const &className,
                                 std::string const &rootName,
                                 SectionNode const &sectionNode)
{
    std::string name = trim(sectionNode.stats.sectionInfo.name);
    if (!rootName.empty())
        name = rootName + '/' + name;

    if (!sectionNode.assertions.empty() || !sectionNode.stdOut.empty() || !sectionNode.stdErr.empty())
    {
        XmlWriter::ScopedElement e = xml.scopedElement("testcase");
        if (className.empty())
        {
            xml.writeAttribute("classname", name);
            xml.writeAttribute("name", "root");
        }
        else
        {
            xml.writeAttribute("classname", className);
            xml.writeAttribute("name", name);
        }
        xml.writeAttribute("time", ::Catch::Detail::stringify(sectionNode.stats.durationInSeconds));

        writeAssertions(sectionNode);

        if (!sectionNode.stdOut.empty())
            xml.scopedElement("system-out").writeText(trim(sectionNode.stdOut), false);
        if (!sectionNode.stdErr.empty())
            xml.scopedElement("system-err").writeText(trim(sectionNode.stdErr), false);
    }
    for (auto const &childNode : sectionNode.childSections)
        if (className.empty())
            writeSection(name, "", *childNode);
        else
            writeSection(className, name, *childNode);
}

void JunitReporter::writeAssertions(SectionNode const &sectionNode)
{
    for (auto const &assertion : sectionNode.assertions)
        writeAssertion(assertion);
}

void JunitReporter::writeAssertion(AssertionStats const &stats)
{
    AssertionResult const &result = stats.assertionResult;
    if (!result.isOk())
    {
        std::string elementName;
        switch (result.getResultType())
        {
            case ResultWas::ThrewException:
            case ResultWas::FatalErrorCondition:
                elementName = "error";
                break;
            case ResultWas::ExplicitFailure:
                elementName = "failure";
                break;
            case ResultWas::ExpressionFailed:
                elementName = "failure";
                break;
            case ResultWas::DidntThrowException:
                elementName = "failure";
                break;

            // We should never see these here:
            case ResultWas::Info:
            case ResultWas::Warning:
            case ResultWas::Ok:
            case ResultWas::Unknown:
            case ResultWas::FailureBit:
            case ResultWas::Exception:
                elementName = "internalError";
                break;
        }

        XmlWriter::ScopedElement e = xml.scopedElement(elementName);

        xml.writeAttribute("message", result.getExpandedExpression());
        xml.writeAttribute("type", result.getTestMacroName());

        ReusableStringStream rss;
        if (!result.getMessage().empty())
            rss << result.getMessage() << '\n';
        for (auto const &msg : stats.infoMessages)
            if (msg.type == ResultWas::Info)
                rss << msg.message << '\n';

        rss << "at " << result.getSourceInfo();
        xml.writeText(rss.str(), false);
    }
}

CATCH_REGISTER_REPORTER("junit", JunitReporter)

} // end namespace Catch
// end catch_reporter_junit.cpp
// start catch_reporter_listening.cpp

#include <cassert>

namespace Catch
{

void ListeningReporter::addListener(IStreamingReporterPtr &&listener)
{
    m_listeners.push_back(std::move(listener));
}

void ListeningReporter::addReporter(IStreamingReporterPtr &&reporter)
{
    assert(!m_reporter && "Listening reporter can wrap only 1 real reporter");
    m_reporter = std::move(reporter);
}

ReporterPreferences ListeningReporter::getPreferences() const
{
    return m_reporter->getPreferences();
}

std::set<Verbosity> ListeningReporter::getSupportedVerbosities()
{
    return std::set<Verbosity>{};
}

void ListeningReporter::noMatchingTestCases(std::string const &spec)
{
    for (auto const &listener : m_listeners)
    {
        listener->noMatchingTestCases(spec);
    }
    m_reporter->noMatchingTestCases(spec);
}

void ListeningReporter::benchmarkStarting(BenchmarkInfo const &benchmarkInfo)
{
    for (auto const &listener : m_listeners)
    {
        listener->benchmarkStarting(benchmarkInfo);
    }
    m_reporter->benchmarkStarting(benchmarkInfo);
}
void ListeningReporter::benchmarkEnded(BenchmarkStats const &benchmarkStats)
{
    for (auto const &listener : m_listeners)
    {
        listener->benchmarkEnded(benchmarkStats);
    }
    m_reporter->benchmarkEnded(benchmarkStats);
}

void ListeningReporter::testRunStarting(TestRunInfo const &testRunInfo)
{
    for (auto const &listener : m_listeners)
    {
        listener->testRunStarting(testRunInfo);
    }
    m_reporter->testRunStarting(testRunInfo);
}

void ListeningReporter::testGroupStarting(GroupInfo const &groupInfo)
{
    for (auto const &listener : m_listeners)
    {
        listener->testGroupStarting(groupInfo);
    }
    m_reporter->testGroupStarting(groupInfo);
}

void ListeningReporter::testCaseStarting(TestCaseInfo const &testInfo)
{
    for (auto const &listener : m_listeners)
    {
        listener->testCaseStarting(testInfo);
    }
    m_reporter->testCaseStarting(testInfo);
}

void ListeningReporter::sectionStarting(SectionInfo const &sectionInfo)
{
    for (auto const &listener : m_listeners)
    {
        listener->sectionStarting(sectionInfo);
    }
    m_reporter->sectionStarting(sectionInfo);
}

void ListeningReporter::assertionStarting(AssertionInfo const &assertionInfo)
{
    for (auto const &listener : m_listeners)
    {
        listener->assertionStarting(assertionInfo);
    }
    m_reporter->assertionStarting(assertionInfo);
}

// The return value indicates if the messages buffer should be cleared:
bool ListeningReporter::assertionEnded(AssertionStats const &assertionStats)
{
    for (auto const &listener : m_listeners)
    {
        static_cast<void>(listener->assertionEnded(assertionStats));
    }
    return m_reporter->assertionEnded(assertionStats);
}

void ListeningReporter::sectionEnded(SectionStats const &sectionStats)
{
    for (auto const &listener : m_listeners)
    {
        listener->sectionEnded(sectionStats);
    }
    m_reporter->sectionEnded(sectionStats);
}

void ListeningReporter::testCaseEnded(TestCaseStats const &testCaseStats)
{
    for (auto const &listener : m_listeners)
    {
        listener->testCaseEnded(testCaseStats);
    }
    m_reporter->testCaseEnded(testCaseStats);
}

void ListeningReporter::testGroupEnded(TestGroupStats const &testGroupStats)
{
    for (auto const &listener : m_listeners)
    {
        listener->testGroupEnded(testGroupStats);
    }
    m_reporter->testGroupEnded(testGroupStats);
}

void ListeningReporter::testRunEnded(TestRunStats const &testRunStats)
{
    for (auto const &listener : m_listeners)
    {
        listener->testRunEnded(testRunStats);
    }
    m_reporter->testRunEnded(testRunStats);
}

void ListeningReporter::skipTest(TestCaseInfo const &testInfo)
{
    for (auto const &listener : m_listeners)
    {
        listener->skipTest(testInfo);
    }
    m_reporter->skipTest(testInfo);
}

bool ListeningReporter::isMulti() const
{
    return true;
}

} // end namespace Catch
// end catch_reporter_listening.cpp
// start catch_reporter_xml.cpp

#if defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable : 4061) // Not all labels are EXPLICITLY handled in switch \
    // Note that 4062 (not all labels are handled                                  \
    // and default is missing) is enabled
#endif

namespace Catch
{
XmlReporter::XmlReporter(ReporterConfig const &_config)
    : StreamingReporterBase(_config), m_xml(_config.stream())
{
    m_reporterPrefs.shouldRedirectStdOut = true;
}

XmlReporter::~XmlReporter() = default;

std::string XmlReporter::getDescription()
{
    return "Reports test results as an XML document";
}

std::string XmlReporter::getStylesheetRef() const
{
    return std::string();
}

void XmlReporter::writeSourceInfo(SourceLineInfo const &sourceInfo)
{
    m_xml
        .writeAttribute("filename", sourceInfo.file)
        .writeAttribute("line", sourceInfo.line);
}

void XmlReporter::noMatchingTestCases(std::string const &s)
{
    StreamingReporterBase::noMatchingTestCases(s);
}

void XmlReporter::testRunStarting(TestRunInfo const &testInfo)
{
    StreamingReporterBase::testRunStarting(testInfo);
    std::string stylesheetRef = getStylesheetRef();
    if (!stylesheetRef.empty())
        m_xml.writeStylesheetRef(stylesheetRef);
    m_xml.startElement("Catch");
    if (!m_config->name().empty())
        m_xml.writeAttribute("name", m_config->name());
}

void XmlReporter::testGroupStarting(GroupInfo const &groupInfo)
{
    StreamingReporterBase::testGroupStarting(groupInfo);
    m_xml.startElement("Group")
        .writeAttribute("name", groupInfo.name);
}

void XmlReporter::testCaseStarting(TestCaseInfo const &testInfo)
{
    StreamingReporterBase::testCaseStarting(testInfo);
    m_xml.startElement("TestCase")
        .writeAttribute("name", trim(testInfo.name))
        .writeAttribute("description", testInfo.description)
        .writeAttribute("tags", testInfo.tagsAsString());

    writeSourceInfo(testInfo.lineInfo);

    if (m_config->showDurations() == ShowDurations::Always)
        m_testCaseTimer.start();
    m_xml.ensureTagClosed();
}

void XmlReporter::sectionStarting(SectionInfo const &sectionInfo)
{
    StreamingReporterBase::sectionStarting(sectionInfo);
    if (m_sectionDepth++ > 0)
    {
        m_xml.startElement("Section")
            .writeAttribute("name", trim(sectionInfo.name))
            .writeAttribute("description", sectionInfo.description);
        writeSourceInfo(sectionInfo.lineInfo);
        m_xml.ensureTagClosed();
    }
}

void XmlReporter::assertionStarting(AssertionInfo const &) {}

bool XmlReporter::assertionEnded(AssertionStats const &assertionStats)
{

    AssertionResult const &result = assertionStats.assertionResult;

    bool includeResults = m_config->includeSuccessfulResults() || !result.isOk();

    if (includeResults || result.getResultType() == ResultWas::Warning)
    {
        // Print any info messages in <Info> tags.
        for (auto const &msg : assertionStats.infoMessages)
        {
            if (msg.type == ResultWas::Info && includeResults)
            {
                m_xml.scopedElement("Info")
                    .writeText(msg.message);
            }
            else if (msg.type == ResultWas::Warning)
            {
                m_xml.scopedElement("Warning")
                    .writeText(msg.message);
            }
        }
    }

    // Drop out if result was successful but we're not printing them.
    if (!includeResults && result.getResultType() != ResultWas::Warning)
        return true;

    // Print the expression if there is one.
    if (result.hasExpression())
    {
        m_xml.startElement("Expression")
            .writeAttribute("success", result.succeeded())
            .writeAttribute("type", result.getTestMacroName());

        writeSourceInfo(result.getSourceInfo());

        m_xml.scopedElement("Original")
            .writeText(result.getExpression());
        m_xml.scopedElement("Expanded")
            .writeText(result.getExpandedExpression());
    }

    // And... Print a result applicable to each result type.
    switch (result.getResultType())
    {
        case ResultWas::ThrewException:
            m_xml.startElement("Exception");
            writeSourceInfo(result.getSourceInfo());
            m_xml.writeText(result.getMessage());
            m_xml.endElement();
            break;
        case ResultWas::FatalErrorCondition:
            m_xml.startElement("FatalErrorCondition");
            writeSourceInfo(result.getSourceInfo());
            m_xml.writeText(result.getMessage());
            m_xml.endElement();
            break;
        case ResultWas::Info:
            m_xml.scopedElement("Info")
                .writeText(result.getMessage());
            break;
        case ResultWas::Warning:
            // Warning will already have been written
            break;
        case ResultWas::ExplicitFailure:
            m_xml.startElement("Failure");
            writeSourceInfo(result.getSourceInfo());
            m_xml.writeText(result.getMessage());
            m_xml.endElement();
            break;
        default:
            break;
    }

    if (result.hasExpression())
        m_xml.endElement();

    return true;
}

void XmlReporter::sectionEnded(SectionStats const &sectionStats)
{
    StreamingReporterBase::sectionEnded(sectionStats);
    if (--m_sectionDepth > 0)
    {
        XmlWriter::ScopedElement e = m_xml.scopedElement("OverallResults");
        e.writeAttribute("successes", sectionStats.assertions.passed);
        e.writeAttribute("failures", sectionStats.assertions.failed);
        e.writeAttribute("expectedFailures", sectionStats.assertions.failedButOk);

        if (m_config->showDurations() == ShowDurations::Always)
            e.writeAttribute("durationInSeconds", sectionStats.durationInSeconds);

        m_xml.endElement();
    }
}

void XmlReporter::testCaseEnded(TestCaseStats const &testCaseStats)
{
    StreamingReporterBase::testCaseEnded(testCaseStats);
    XmlWriter::ScopedElement e = m_xml.scopedElement("OverallResult");
    e.writeAttribute("success", testCaseStats.totals.assertions.allOk());

    if (m_config->showDurations() == ShowDurations::Always)
        e.writeAttribute("durationInSeconds", m_testCaseTimer.getElapsedSeconds());

    if (!testCaseStats.stdOut.empty())
        m_xml.scopedElement("StdOut").writeText(trim(testCaseStats.stdOut), false);
    if (!testCaseStats.stdErr.empty())
        m_xml.scopedElement("StdErr").writeText(trim(testCaseStats.stdErr), false);

    m_xml.endElement();
}

void XmlReporter::testGroupEnded(TestGroupStats const &testGroupStats)
{
    StreamingReporterBase::testGroupEnded(testGroupStats);
    // TODO: Check testGroupStats.aborting and act accordingly.
    m_xml.scopedElement("OverallResults")
        .writeAttribute("successes", testGroupStats.totals.assertions.passed)
        .writeAttribute("failures", testGroupStats.totals.assertions.failed)
        .writeAttribute("expectedFailures", testGroupStats.totals.assertions.failedButOk);
    m_xml.endElement();
}

void XmlReporter::testRunEnded(TestRunStats const &testRunStats)
{
    StreamingReporterBase::testRunEnded(testRunStats);
    m_xml.scopedElement("OverallResults")
        .writeAttribute("successes", testRunStats.totals.assertions.passed)
        .writeAttribute("failures", testRunStats.totals.assertions.failed)
        .writeAttribute("expectedFailures", testRunStats.totals.assertions.failedButOk);
    m_xml.endElement();
}

CATCH_REGISTER_REPORTER("xml", XmlReporter)

} // end namespace Catch

#if defined(_MSC_VER)
#pragma warning(pop)
#endif
// end catch_reporter_xml.cpp

namespace Catch
{
LeakDetector leakDetector;
}

#ifdef __clang__
#pragma clang diagnostic pop
#endif

// end catch_impl.hpp
#endif

#ifdef CATCH_CONFIG_MAIN
// start catch_default_main.hpp

#ifndef __OBJC__

#if defined(CATCH_CONFIG_WCHAR) && defined(WIN32) && defined(_UNICODE) && !defined(DO_NOT_USE_WMAIN)
// Standard C/C++ Win32 Unicode wmain entry point
extern "C" int wmain(int argc, wchar_t *argv[], wchar_t *[])
{
#else
// Standard C/C++ main entry point
int main(int argc, char *argv[])
{
#endif

    return Catch::Session().run(argc, argv);
}

#else // __OBJC__

// Objective-C entry point
int main(int argc, char *const argv[])
{
#if !CATCH_ARC_ENABLED
    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
#endif

    Catch::registerTestMethods();
    int result = Catch::Session().run(argc, (char **)argv);

#if !CATCH_ARC_ENABLED
    [pool drain];
#endif

    return result;
}

#endif // __OBJC__

// end catch_default_main.hpp
#endif

#if !defined(CATCH_CONFIG_IMPL_ONLY)

#ifdef CLARA_CONFIG_MAIN_NOT_DEFINED
#undef CLARA_CONFIG_MAIN
#endif

#if !defined(CATCH_CONFIG_DISABLE)
//////
// If this config identifier is defined then all CATCH macros are prefixed with CATCH_
#ifdef CATCH_CONFIG_PREFIX_ALL

#define CATCH_REQUIRE(...) INTERNAL_CATCH_TEST("CATCH_REQUIRE", Catch::ResultDisposition::Normal, __VA_ARGS__)
#define CATCH_REQUIRE_FALSE(...) INTERNAL_CATCH_TEST("CATCH_REQUIRE_FALSE", Catch::ResultDisposition::Normal | Catch::ResultDisposition::FalseTest, __VA_ARGS__)

#define CATCH_REQUIRE_THROWS(...) INTERNAL_CATCH_THROWS("CATCH_REQUIRE_THROWS", Catch::ResultDisposition::Normal, "", __VA_ARGS__)
#define CATCH_REQUIRE_THROWS_AS(expr, exceptionType) INTERNAL_CATCH_THROWS_AS("CATCH_REQUIRE_THROWS_AS", exceptionType, Catch::ResultDisposition::Normal, expr)
#define CATCH_REQUIRE_THROWS_WITH(expr, matcher) INTERNAL_CATCH_THROWS_STR_MATCHES("CATCH_REQUIRE_THROWS_WITH", Catch::ResultDisposition::Normal, matcher, expr)
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CATCH_REQUIRE_THROWS_MATCHES(expr, exceptionType, matcher) INTERNAL_CATCH_THROWS_MATCHES("CATCH_REQUIRE_THROWS_MATCHES", exceptionType, Catch::ResultDisposition::Normal, matcher, expr)
#endif // CATCH_CONFIG_DISABLE_MATCHERS
#define CATCH_REQUIRE_NOTHROW(...) INTERNAL_CATCH_NO_THROW("CATCH_REQUIRE_NOTHROW", Catch::ResultDisposition::Normal, __VA_ARGS__)

#define CATCH_CHECK(...) INTERNAL_CATCH_TEST("CATCH_CHECK", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__)
#define CATCH_CHECK_FALSE(...) INTERNAL_CATCH_TEST("CATCH_CHECK_FALSE", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::FalseTest, __VA_ARGS__)
#define CATCH_CHECKED_IF(...) INTERNAL_CATCH_IF("CATCH_CHECKED_IF", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__)
#define CATCH_CHECKED_ELSE(...) INTERNAL_CATCH_ELSE("CATCH_CHECKED_ELSE", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__)
#define CATCH_CHECK_NOFAIL(...) INTERNAL_CATCH_TEST("CATCH_CHECK_NOFAIL", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::SuppressFail, __VA_ARGS__)

#define CATCH_CHECK_THROWS(...) INTERNAL_CATCH_THROWS("CATCH_CHECK_THROWS", Catch::ResultDisposition::ContinueOnFailure, "", __VA_ARGS__)
#define CATCH_CHECK_THROWS_AS(expr, exceptionType) INTERNAL_CATCH_THROWS_AS("CATCH_CHECK_THROWS_AS", exceptionType, Catch::ResultDisposition::ContinueOnFailure, expr)
#define CATCH_CHECK_THROWS_WITH(expr, matcher) INTERNAL_CATCH_THROWS_STR_MATCHES("CATCH_CHECK_THROWS_WITH", Catch::ResultDisposition::ContinueOnFailure, matcher, expr)
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CATCH_CHECK_THROWS_MATCHES(expr, exceptionType, matcher) INTERNAL_CATCH_THROWS_MATCHES("CATCH_CHECK_THROWS_MATCHES", exceptionType, Catch::ResultDisposition::ContinueOnFailure, matcher, expr)
#endif // CATCH_CONFIG_DISABLE_MATCHERS
#define CATCH_CHECK_NOTHROW(...) INTERNAL_CATCH_NO_THROW("CATCH_CHECK_NOTHROW", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__)

#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CATCH_CHECK_THAT(arg, matcher) INTERNAL_CHECK_THAT("CATCH_CHECK_THAT", matcher, Catch::ResultDisposition::ContinueOnFailure, arg)

#define CATCH_REQUIRE_THAT(arg, matcher) INTERNAL_CHECK_THAT("CATCH_REQUIRE_THAT", matcher, Catch::ResultDisposition::Normal, arg)
#endif // CATCH_CONFIG_DISABLE_MATCHERS

#define CATCH_INFO(msg) INTERNAL_CATCH_INFO("CATCH_INFO", msg)
#define CATCH_WARN(msg) INTERNAL_CATCH_MSG("CATCH_WARN", Catch::ResultWas::Warning, Catch::ResultDisposition::ContinueOnFailure, msg)
#define CATCH_CAPTURE(msg) INTERNAL_CATCH_INFO("CATCH_CAPTURE", #msg " := " << ::Catch::Detail::stringify(msg))

#define CATCH_TEST_CASE(...) INTERNAL_CATCH_TESTCASE(__VA_ARGS__)
#define CATCH_TEST_CASE_METHOD(className, ...) INTERNAL_CATCH_TEST_CASE_METHOD(className, __VA_ARGS__)
#define CATCH_METHOD_AS_TEST_CASE(method, ...) INTERNAL_CATCH_METHOD_AS_TEST_CASE(method, __VA_ARGS__)
#define CATCH_REGISTER_TEST_CASE(Function, ...) INTERNAL_CATCH_REGISTER_TESTCASE(Function, __VA_ARGS__)
#define CATCH_SECTION(...) INTERNAL_CATCH_SECTION(__VA_ARGS__)
#define CATCH_FAIL(...) INTERNAL_CATCH_MSG("CATCH_FAIL", Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::Normal, __VA_ARGS__)
#define CATCH_FAIL_CHECK(...) INTERNAL_CATCH_MSG("CATCH_FAIL_CHECK", Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__)
#define CATCH_SUCCEED(...) INTERNAL_CATCH_MSG("CATCH_SUCCEED", Catch::ResultWas::Ok, Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__)

#define CATCH_ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE()

// "BDD-style" convenience wrappers
#define CATCH_SCENARIO(...) CATCH_TEST_CASE("Scenario: " __VA_ARGS__)
#define CATCH_SCENARIO_METHOD(className, ...) INTERNAL_CATCH_TEST_CASE_METHOD(className, "Scenario: " __VA_ARGS__)
#define CATCH_GIVEN(desc) CATCH_SECTION(std::string("Given: ") + desc)
#define CATCH_WHEN(desc) CATCH_SECTION(std::string(" When: ") + desc)
#define CATCH_AND_WHEN(desc) CATCH_SECTION(std::string("  And: ") + desc)
#define CATCH_THEN(desc) CATCH_SECTION(std::string(" Then: ") + desc)
#define CATCH_AND_THEN(desc) CATCH_SECTION(std::string("  And: ") + desc)

// If CATCH_CONFIG_PREFIX_ALL is not defined then the CATCH_ prefix is not required
#else

#define REQUIRE(...) INTERNAL_CATCH_TEST("REQUIRE", Catch::ResultDisposition::Normal, __VA_ARGS__)
#define REQUIRE_FALSE(...) INTERNAL_CATCH_TEST("REQUIRE_FALSE", Catch::ResultDisposition::Normal | Catch::ResultDisposition::FalseTest, __VA_ARGS__)

#define REQUIRE_THROWS(...) INTERNAL_CATCH_THROWS("REQUIRE_THROWS", Catch::ResultDisposition::Normal, __VA_ARGS__)
#define REQUIRE_THROWS_AS(expr, exceptionType) INTERNAL_CATCH_THROWS_AS("REQUIRE_THROWS_AS", exceptionType, Catch::ResultDisposition::Normal, expr)
#define REQUIRE_THROWS_WITH(expr, matcher) INTERNAL_CATCH_THROWS_STR_MATCHES("REQUIRE_THROWS_WITH", Catch::ResultDisposition::Normal, matcher, expr)
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define REQUIRE_THROWS_MATCHES(expr, exceptionType, matcher) INTERNAL_CATCH_THROWS_MATCHES("REQUIRE_THROWS_MATCHES", exceptionType, Catch::ResultDisposition::Normal, matcher, expr)
#endif // CATCH_CONFIG_DISABLE_MATCHERS
#define REQUIRE_NOTHROW(...) INTERNAL_CATCH_NO_THROW("REQUIRE_NOTHROW", Catch::ResultDisposition::Normal, __VA_ARGS__)

#define CHECK(...) INTERNAL_CATCH_TEST("CHECK", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__)
#define CHECK_FALSE(...) INTERNAL_CATCH_TEST("CHECK_FALSE", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::FalseTest, __VA_ARGS__)
#define CHECKED_IF(...) INTERNAL_CATCH_IF("CHECKED_IF", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__)
#define CHECKED_ELSE(...) INTERNAL_CATCH_ELSE("CHECKED_ELSE", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__)
#define CHECK_NOFAIL(...) INTERNAL_CATCH_TEST("CHECK_NOFAIL", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::SuppressFail, __VA_ARGS__)

#define CHECK_THROWS(...) INTERNAL_CATCH_THROWS("CHECK_THROWS", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__)
#define CHECK_THROWS_AS(expr, exceptionType) INTERNAL_CATCH_THROWS_AS("CHECK_THROWS_AS", exceptionType, Catch::ResultDisposition::ContinueOnFailure, expr)
#define CHECK_THROWS_WITH(expr, matcher) INTERNAL_CATCH_THROWS_STR_MATCHES("CHECK_THROWS_WITH", Catch::ResultDisposition::ContinueOnFailure, matcher, expr)
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CHECK_THROWS_MATCHES(expr, exceptionType, matcher) INTERNAL_CATCH_THROWS_MATCHES("CHECK_THROWS_MATCHES", exceptionType, Catch::ResultDisposition::ContinueOnFailure, matcher, expr)
#endif // CATCH_CONFIG_DISABLE_MATCHERS
#define CHECK_NOTHROW(...) INTERNAL_CATCH_NO_THROW("CHECK_NOTHROW", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__)

#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CHECK_THAT(arg, matcher) INTERNAL_CHECK_THAT("CHECK_THAT", matcher, Catch::ResultDisposition::ContinueOnFailure, arg)

#define REQUIRE_THAT(arg, matcher) INTERNAL_CHECK_THAT("REQUIRE_THAT", matcher, Catch::ResultDisposition::Normal, arg)
#endif // CATCH_CONFIG_DISABLE_MATCHERS

#define INFO(msg) INTERNAL_CATCH_INFO("INFO", msg)
#define WARN(msg) INTERNAL_CATCH_MSG("WARN", Catch::ResultWas::Warning, Catch::ResultDisposition::ContinueOnFailure, msg)
#define CAPTURE(msg) INTERNAL_CATCH_INFO("CAPTURE", #msg " := " << ::Catch::Detail::stringify(msg))

#define TEST_CASE(...) INTERNAL_CATCH_TESTCASE(__VA_ARGS__)
#define TEST_CASE_METHOD(className, ...) INTERNAL_CATCH_TEST_CASE_METHOD(className, __VA_ARGS__)
#define METHOD_AS_TEST_CASE(method, ...) INTERNAL_CATCH_METHOD_AS_TEST_CASE(method, __VA_ARGS__)
#define REGISTER_TEST_CASE(Function, ...) INTERNAL_CATCH_REGISTER_TESTCASE(Function, __VA_ARGS__)
#define SECTION(...) INTERNAL_CATCH_SECTION(__VA_ARGS__)
#define FAIL(...) INTERNAL_CATCH_MSG("FAIL", Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::Normal, __VA_ARGS__)
#define FAIL_CHECK(...) INTERNAL_CATCH_MSG("FAIL_CHECK", Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__)
#define SUCCEED(...) INTERNAL_CATCH_MSG("SUCCEED", Catch::ResultWas::Ok, Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__)
#define ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE()

#endif

#define CATCH_TRANSLATE_EXCEPTION(signature) INTERNAL_CATCH_TRANSLATE_EXCEPTION(signature)

// "BDD-style" convenience wrappers
#define SCENARIO(...) TEST_CASE("Scenario: " __VA_ARGS__)
#define SCENARIO_METHOD(className, ...) INTERNAL_CATCH_TEST_CASE_METHOD(className, "Scenario: " __VA_ARGS__)

#define GIVEN(desc) SECTION(std::string("   Given: ") + desc)
#define WHEN(desc) SECTION(std::string("    When: ") + desc)
#define AND_WHEN(desc) SECTION(std::string("And when: ") + desc)
#define THEN(desc) SECTION(std::string("    Then: ") + desc)
#define AND_THEN(desc) SECTION(std::string("     And: ") + desc)

using Catch::Detail::Approx;

#else
//////
// If this config identifier is defined then all CATCH macros are prefixed with CATCH_
#ifdef CATCH_CONFIG_PREFIX_ALL

#define CATCH_REQUIRE(...) (void)(0)
#define CATCH_REQUIRE_FALSE(...) (void)(0)

#define CATCH_REQUIRE_THROWS(...) (void)(0)
#define CATCH_REQUIRE_THROWS_AS(expr, exceptionType) (void)(0)
#define CATCH_REQUIRE_THROWS_WITH(expr, matcher) (void)(0)
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CATCH_REQUIRE_THROWS_MATCHES(expr, exceptionType, matcher) (void)(0)
#endif // CATCH_CONFIG_DISABLE_MATCHERS
#define CATCH_REQUIRE_NOTHROW(...) (void)(0)

#define CATCH_CHECK(...) (void)(0)
#define CATCH_CHECK_FALSE(...) (void)(0)
#define CATCH_CHECKED_IF(...) if (__VA_ARGS__)
#define CATCH_CHECKED_ELSE(...) if (!(__VA_ARGS__))
#define CATCH_CHECK_NOFAIL(...) (void)(0)

#define CATCH_CHECK_THROWS(...) (void)(0)
#define CATCH_CHECK_THROWS_AS(expr, exceptionType) (void)(0)
#define CATCH_CHECK_THROWS_WITH(expr, matcher) (void)(0)
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CATCH_CHECK_THROWS_MATCHES(expr, exceptionType, matcher) (void)(0)
#endif // CATCH_CONFIG_DISABLE_MATCHERS
#define CATCH_CHECK_NOTHROW(...) (void)(0)

#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CATCH_CHECK_THAT(arg, matcher) (void)(0)

#define CATCH_REQUIRE_THAT(arg, matcher) (void)(0)
#endif // CATCH_CONFIG_DISABLE_MATCHERS

#define CATCH_INFO(msg) (void)(0)
#define CATCH_WARN(msg) (void)(0)
#define CATCH_CAPTURE(msg) (void)(0)

#define CATCH_TEST_CASE(...) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____))
#define CATCH_TEST_CASE_METHOD(className, ...) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____))
#define CATCH_METHOD_AS_TEST_CASE(method, ...)
#define CATCH_REGISTER_TEST_CASE(Function, ...) (void)(0)
#define CATCH_SECTION(...)
#define CATCH_FAIL(...) (void)(0)
#define CATCH_FAIL_CHECK(...) (void)(0)
#define CATCH_SUCCEED(...) (void)(0)

#define CATCH_ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____))

// "BDD-style" convenience wrappers
#define CATCH_SCENARIO(...) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____))
#define CATCH_SCENARIO_METHOD(className, ...) INTERNAL_CATCH_TESTCASE_METHOD_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____), className)
#define CATCH_GIVEN(desc)
#define CATCH_WHEN(desc)
#define CATCH_AND_WHEN(desc)
#define CATCH_THEN(desc)
#define CATCH_AND_THEN(desc)

// If CATCH_CONFIG_PREFIX_ALL is not defined then the CATCH_ prefix is not required
#else

#define REQUIRE(...) (void)(0)
#define REQUIRE_FALSE(...) (void)(0)

#define REQUIRE_THROWS(...) (void)(0)
#define REQUIRE_THROWS_AS(expr, exceptionType) (void)(0)
#define REQUIRE_THROWS_WITH(expr, matcher) (void)(0)
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define REQUIRE_THROWS_MATCHES(expr, exceptionType, matcher) (void)(0)
#endif // CATCH_CONFIG_DISABLE_MATCHERS
#define REQUIRE_NOTHROW(...) (void)(0)

#define CHECK(...) (void)(0)
#define CHECK_FALSE(...) (void)(0)
#define CHECKED_IF(...) if (__VA_ARGS__)
#define CHECKED_ELSE(...) if (!(__VA_ARGS__))
#define CHECK_NOFAIL(...) (void)(0)

#define CHECK_THROWS(...) (void)(0)
#define CHECK_THROWS_AS(expr, exceptionType) (void)(0)
#define CHECK_THROWS_WITH(expr, matcher) (void)(0)
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CHECK_THROWS_MATCHES(expr, exceptionType, matcher) (void)(0)
#endif // CATCH_CONFIG_DISABLE_MATCHERS
#define CHECK_NOTHROW(...) (void)(0)

#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CHECK_THAT(arg, matcher) (void)(0)

#define REQUIRE_THAT(arg, matcher) (void)(0)
#endif // CATCH_CONFIG_DISABLE_MATCHERS

#define INFO(msg) (void)(0)
#define WARN(msg) (void)(0)
#define CAPTURE(msg) (void)(0)

#define TEST_CASE(...) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____))
#define TEST_CASE_METHOD(className, ...) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____))
#define METHOD_AS_TEST_CASE(method, ...)
#define REGISTER_TEST_CASE(Function, ...) (void)(0)
#define SECTION(...)
#define FAIL(...) (void)(0)
#define FAIL_CHECK(...) (void)(0)
#define SUCCEED(...) (void)(0)
#define ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____))

#endif

#define CATCH_TRANSLATE_EXCEPTION(signature) INTERNAL_CATCH_TRANSLATE_EXCEPTION_NO_REG(INTERNAL_CATCH_UNIQUE_NAME(catch_internal_ExceptionTranslator), signature)

// "BDD-style" convenience wrappers
#define SCENARIO(...) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____))
#define SCENARIO_METHOD(className, ...) INTERNAL_CATCH_TESTCASE_METHOD_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____), className)

#define GIVEN(desc)
#define WHEN(desc)
#define AND_WHEN(desc)
#define THEN(desc)
#define AND_THEN(desc)

using Catch::Detail::Approx;

#endif

#endif // ! CATCH_CONFIG_IMPL_ONLY

// start catch_reenable_warnings.h

#ifdef __clang__
#ifdef __ICC // icpc defines the __clang__ macro
#pragma warning(pop)
#else
#pragma clang diagnostic pop
#endif
#elif defined __GNUC__
#pragma GCC diagnostic pop
#endif

// end catch_reenable_warnings.h
// end catch.hpp
#endif // TWOBLUECUBES_SINGLE_INCLUDE_CATCH_HPP_INCLUDED
